Danny returns from the war, much to the surprise and joy of everybody, particularly Mary. However, he is acting strangely as he is in warshock. He begins to worry everybody, particularly Ed and Mary. The guys of the casino are also contending with two of the dumbest guys on Earth, one of whom has a microchip implant in his arm. The new guy Leo has a thing for Delinda, and Sam and Delinda are at odds as Sam wants to hire out Mystique to a group of rich morticians.

The gang tries to figure out the tactics of card counters. Nessa has an unwanted admirer. Danny finds a scam artist. Mary gives an employee orientation to topless women.

Ed is framed for murder when enemies from his past resurface. Danny and Mike secretly intervene to investigate and take matters into their own hands. Meanwhile, Sam, Nessa, Mary and Delinda desperately attempt to find tenants for their new joint-purchased home, settling on what they think to be the perfect tenants, only to discover they've misjudged the situation.

An old boyfriend of Delinda's comes to town to fulfill some fantasies which includes having sex with someone cause he's dying. Delinda at first doesn't believe him but Ed learns it's true. And one of Sam's whales who has a big party and what he wants to serve is lobsters but someone steals them. So Danny has to try and find them. And Michael Buble, who's scheduled to perform announces he's giving up singing and wants to do other things. Which makes Mary worried.

Danny is literally lift holding the baby after a late Marines mate's widow asks him to mind the infant son while she 'applies for an accounting job', which Danny and Ed find is an 'escort' job. Ed gives Delinda a day off to go look with two girls mates who 'call in sick' to go look in the desert for a silver bullion treasure on a map left to Sam by a late lover. Delinda seems perfectly prepared, but only her mod holds out after hey wreck the car, yet the nocturnal campfire is graced by the casino's 'shy' star singer Paul.

Nessa is stunned when a mysterious woman shows up at the Montecito with news that her father is alive and wants to communicate with her. She begins to question what Ed has told her of her father's whereabouts which leads her right into a trap that affects the whole casino. Meanwhile, when a video gaming convention takes over the hotel, Sam, Danny and Mike have to police fraudulent acts of plagiarism. Elsewhere, Mary befriends hotel guest, Hennessy Figueroa, who lost her husband after ten years of marriage and is desperate to keep his memory alive.

The Montecito sponsors its own American football team for the staff's kids. The Lancers, coached by Danny and Mike, are playing in the championship game. Delinda is pushing for more fashionable uniforms for the team. Meanwhile, one of the team members does not get picked up after the game, and various videos of the game indicate that his father may have been kidnapped. Casino owner Gavin Brunson arrives and demands that his new protégé, and lover, be trained by Sam in the art of casino hosting. Sam and her new trainee do not like each other and compete for clients.

Ed, Danny and Mike join forces with Dr. Jordan Cavanaugh and Det. Woody Hoyt of 'Crossing Jordan' to investigate the murder of a high-stakes gambler.

Ed uses his past connections and some old-school tactics to hunt down the man who stole a priceless work of art from the Montecito. His frantic search for the piece leads to an uncomfortable reunion with his former partner Jack Keller, who cannot be trusted. Danny and Mike are dispatched to deal with a fight between their tenants and find themselves smack in the middle of a lovers' quarrel. Sam puts together an exotic weekend for a young couple in love that ends with only Sam smiling.

Danny refuses a USMC courage-rewarding decoration 'for someone's death' and 'elopes', actually helped by the girls, to an exclusive Malibu resort to propose to Mary. They return early... . Mike freaks when he spots a single reflexion image of a presumably missing girl, because his family's in-living cousin Michelle Cannon disappeared aged 14, Ed helps him, using his FBI behavioral science unit skills. They find she may be with recently released criminal Chris Johnson, and Ed uses a police records contact... Delinda goes crazy with enthusiasm for the Polyphonic Spree, but has no musical skills to offer with her application to join.

Delinda takes a fancy to rodeo star Cody Barnes, but his horse Lucas gets stolen, so she makes Ed send Danny and Mike to help looking- and find she's part of the problem... Sam is told her earnings are substandard, even for a low period; she realizes 'small player' Alex Brooks's game is laundering when he turns up with $1,000,000 in cash, and learns it's from the Juarez cartel- Ed insists to be part of the FBI operation she volunteers for... Mike has his eye on a female engineer, but despite Danny's advice tries too hard.

Danny is called -in bed- with a ransom demand of $213,000 and wakes Mike; they have strict orders to never to give in. Ed is indeed kidnapped and handcuffed in a bathtub by burly Brian Carlton Venturi, who expected to be remembered after getting fired three years ago, ruining his life and costing him access to his daughter. Some crafty searching gets them close while Ed's attempts to negotiate or escape prove painful... Meanwhile an impulsive gambler decides to marry just for the rings he believes bring him luck, only to lose them in a fight between divorcing owners of rival Elvis wedding chapels.

Chaos is set in motion when Danny and Delinda find a hotel guest who appears to have committed suicide. When Delinda investigates further, she suspects murder and dispatches Danny and Ed on a mission to find the killer which places Delinda in jeopardy. Meanwhile, Sam plays host to a tycoon who is obsessed with hygiene and threatens to leave the hotel when a strand of Sam's hair is found on his shirt. Elsewhere, Mike is reunited with his ex-girlfriend Nina from college who has a strange request for him.

Construction CEO Monica Wells is thrown out by Ed for extreme rudeness to the Montecito staff. She files a 'sexual' complaint against Danny, whom she in fact failed to seduce while he was off duty but brought her, more drunk the him, to her suit at Delinda's insistence. It turns out legal help won't suffice, this problem is in Ed's league. Meanwhile Mystique's cash-flow results in a lunch experiment which proves hard to sell to chef Gunther or the guests.

The Montecito is unexpectedly visited by three new major gamblers. Delinda and Nessa rival ruthlessly for hunky 'whale' James Riley's attention. Ed's CIA friend Lisa has barely arrived and there's already another sniper attack on her. Investigating proves even more dangerous. Martin Levson lost his money gambling and his wife to groupies, Mary babysits him to limit clientèle morale damage but overdoes it.

Tired about the bickering between his security and service teams, Ed uses a technique his boss once successfully employed: he makes them switch jobs for a while. While Ed takes Mike along to disprove at any cost the validity of a $271 red light ticket, with a comical twist at the end, Delinda 'takes his place' at a city meeting, which she turns from boring to death into nightclub style. Danny initially hesitates how to handle his former Las Vegas schoolfriend Kevin 'Jinx' Jergeson PR-wise, who used to have incredible bad luck but now keeps winning at roulette, then returns to the boys' security team to discover whether he's somehow cheating brilliantly. While Mary and Sam prove security really is a man's job and fall for sexy temptation worse then they reproached the boys, Nessa takes charge of Mystique, where her 'democratic' British pub night experiment against Gunther's grain soon wins over even the grumpy German chef.

None of the men thought of Valentine's day. Ed expected to be excused for jury duty, but neither the judge, who recently lost badly at the Montecito, nor the counselors object to a professional expert in gambling and security, both being essential to the case. Once on the case, he breaks the embargo rules, determined to prove the accused's innocence. Danny must check on big gambler, Bert Belinsky, who first bets against his wife's horse, then on it, while his wife uses the trips as alibi to hide her plastic surgery. Bert has asked for Mary's company, because her boobs bring him luck; his female company shamelessly gropes Danny's privates. Sam frantically avoids her rich husband Casey Manning, the only man who can play her at her own game.

Ed gets former Firm colleague Frank to help save a Montecito employee's illegal mother, Maria DiGiuseppe, who runs a restaurant, from racketeer Jerry Garret. However, Ed can only control his violent temper by promising him a date with Montecito math wonder Sarasvati Kumar, then gets to the boss behind the screens. After Sam encourages a new gambler, Danny and Mike clean up her mess when it turns out Eric Nesterenko is just an alias of youngster Kellen Phillips, who paid nobodies to cash in a fortune in chips for him to invest illegally in stock with Ron Redfield in San Diego. Delinda and Nessa rival for the attention of Fear Factor (dare game show) host Joe Rogan.

Nevada state Senator Billy Cole, relatively happily married son of the state's U.S. Senator and a Marines mate of Danny McCoy whose life he once saved, is received like royalty, but shows Danny photos of a maid kissing him, made to blackmail him out of political life. Dan finds the non-casino maid suspicious on surveillance videos and brings in help, but after a CD is delivered which the pictures came from, digital enhancement shows it's a 16 year-old, Mindi Distassi; even her parents lost contact three months ago, but a single call back-number is enough to follow the trace, and get surprising answers... Ed Deline is shown photos suggesting Sam Marquez may have contacts with a drug cartel, so he tails her personally when she brings a brown bag to a ghetto family... After decades of 'boring' living safely, actuary Dan 'Flamin' Clayman has sold all his possessions on e-bay and is now staking the full $180,000 at the Montecito roulette, big publicity but if he loses the casino will look ruthless, however he even has a manager, Sandy Schultz, who sets up deals greedily...

Ed Deline and Danny McCoy realize the casino is in trouble: the computer table to weed out mathematical players failed to spot Bill Healy; Adam Clemo and Mike Cannon find out it's being sabotaged by a gizmo operated by a transmitter with a wide range. But how does it work? - Sam Marquez looks out for the son of a recently deceased big spender and winner of $300,000 who came to try his luck, without any experience, in dad's lucky green polyester suit. Sam tries desperately to get it cleaned after a woman spilled red wine on it - Chrissy Potter is worried about her missing husband Grant, but his credit card is also used in the casino- by him, in other female company, but the reason is surprisingly painful.

Monte Carlo legend Estefan honors the casino with his presence, his whole party is into Goth living, like vampires. Gavin Brunson is considering to sell the Montecito. Delinda Deline gets a 'rumspringa' visit from her distant Amish cousin Seth, who experiences the wicked world in 48 hours... As if the geeks from a gadget convention didn't cause enough technological mischief, Danny McCoy finds computer criminal Vic 'Vid Kid' Kenner has slipped in; it takes persistent snooping to bare a lucrative conflict of interest...

Ed Deline tells Danny McCoy that Detective Luis Perez has been killed in Iraq, informs his loved ones together and tries to correct one of his cases, probably a miscarriage of justice against Richie Betts. Mike must help casino guest Mertens to a whore just before his wife's arrival, so he takes him to Kitty ranch, then is sent back to retrieve his wedding ring, in vain, then must try to get a replica stat. Mary Connell must testify in court against Johnny Moya; the County prosecuting officer turns out to be her romantic admirer Jake Porter; they find a way to spare Moya a strike three life-term. Porter helps Danny to crucial evidence.

Happy customer double $ billionaire Fred Puterbaugh returns to the Montecito announcing he wants to show his gratitude by taking Ed -he's busy, so Danny- shopping, but isn't content handing both 'trinkets' over $100,000, he decides to buy the Montecito... Talented magician Arnold Peters was to be thrown out for passing out fliers 'Ed Deline called me the best', inexact and totally out of context, but proves a great eye by catching on sight a crafty dice-cheater none of the staff was on to. With his honest $1,000 premium he shows apparent sports scores prediction talent, but his winnings get stolen in the hotel complex- Danny goes after the thief and his accomplice, while penniless Arnold gets a shot at two jobs in the Montecino... Sam must deal with a high-profile regular who pays for almost nothing himself but his bets, yet demands 'scam prices' for services to be dealt with ruthlessly..

Board key member Casey Manning offers manager Ed Deline a seat on the board of the Montecito after the take-over if he wins the buy-out from three competitors, to take part in a general make-over in light of the progressing Las Vegas competition, but warns his ex Sam that she'll have to become better to remain the 'new' Montecito's host; by his reputation most staff and even the building may be done away with; she offers him anything if he blows the deal off... Ed is told by a CIA agent from Langley that Nessa Holt's disappeared father Jackson sired a second daughter, Adanna from another family, who is in a London hospital, and insists to accompany her, but assures her dad must be dead, yet Ed knows there is more... Danny and Mike investigate a conspicuously behaving couple consisting of fake identity Mark George and Susan Welch, who was reported died in a car accident 16 months ago; they refuse a free luxury suite upgrade, carry a stolen gun but have a surprising explanation. Danny gets terrible news..