David and Mark throw a big party at their Hollywood Hills house, until a huge brush fire stops the party which brings back a bad memory for Kelly over the house party fire (back in Season 5) and puts Donna in jeopardy when she attempts to save a baby deer. Steve's flirtation results in serious consequences from Clare, while Brandon and Tracy become closer. Meanwhile, Kenny tells Valerie to keep distant from him while he is proceeding with the divorce from his wife. But when Valerie accidentally finds out that Kenny does not plan on leaving his wife, ever, out of respect for their six-year-old son, she later tells Kenny some unsettling news about her.

Steve declares war by trying to find a date for himself just to make Clare jealous when she starts dating another guy, named Dick Harris, whom he can't stand. Meanwhile, Donna's new fireman boyfriend, Cliff Yeager, who saved her life during the brushfire, assists her at her sorority's Halloween Haunted House bash. At the reopening of the Peach Pit After Dark, Kenny does not attend, prompting Valerie to resort to her devious tricks again by asking for $100,000 so she can keep away from him. Also, Brandon tries to get closer to Tracy while Kelly hits on Mark.

David's gets a huge windfall when he inherits $250,000 after his grandfather dies. But it causes a rift with his father Mel over how to use it when David lets the thought of wealth go to his head. Kelly extends an olive branch to Valerie after learning from Steve over her condition, but Valerie must keep the fact that she really isn't pregnant under wraps at any cost. Meanwhile, Steve rashly challenges Dick to a crew race, much to Clare's anger. Tracy makes an overture to Brandon to appear with her on a presidential debate. Also, Cliff takes Donna on a camping trip where he tells her of his future plans, not involving her.

On Valentine's Day, Donna's former beau, Cliff Yeager, shows up and causes concern for her and David. Meanwhile, Valerie's mother, Abby, whom she can't stand, arrives in town from Buffalo for a visit and asks Val for financial support. Steve commits yet another error with Clare when he decides to take up smoking pot with Dick Harrison. Chloe makes her singing debut and David get to be the MC for Luther Vandross at the Peach Pit After Dark's Valentine's Day party. Kelly continues dating Tom, and an unhappy Valerie tries to halt the union. Also, Tracy gets a big surprise from Brandon when she mistakenly thinks he bought her an engagement ring.

Kelly learns that her old engagement ring that Brandon bought for her years ago is the cause of the continuing friction between him and Tracy. Meanwhile, Donna can't decide whether to be with Cliff or David, while Chloe makes a move on David after she tells him that Donna is not the woman for him. Clare tells Steve to give one of his step-brothers, Ryan, an advance talk about the birds and the bees. Valerie finally confronts her mother and tells her the true, long-kept facts behinds her father's suicide which are: her father killing himself on the day Valerie and Tom threatened to go to the police with the fact that he's been molesting her. Also, Abby then flies back to Buffalo and Tom soon follows suit.

Brandon, Steve and Dick are partnered together for a three-man basketball team at CU. But that night, Steve and Dick's marijuana habit takes a turn for the worse when Dick suggests heroin and eventually dies from an OD at the After Dark. Meanwhile, Donna wavers between David and Cliff, who try to get on the good side of her parents. Gigi Crane, a magazine writer, starts hanging out with Valerie to get a story about L.A.'s cool people. Kelly and Clare pose as Russians to do some flirting with two other guys during a weekend trip to Palm Springs.