Wilson is amused that all the Camdens call him after Mary's sudden return home, but wants her to tell them what happened. Robbie makes clear he's no longer interested at all in her or Lucy, having found a potential bride. The siblings however are furious when their wayward sister gets the royal treatment from their mother, while their better behavior yielded nothing. It's the last straw when the garage apartment they all want is thrown in, so they squat. Annie declares a war of attrition on them. Eric cowardly keeps out and hopes his sermon on the prodigal son may smooth things, but everyone feels targeted.

Robbie volunteers his car to give Simon a driving lesson as Eric again fails to turn up as promised. Alas, they bump into Matt's car. Wilson has moved and left instructions not to tell Mary his new location. Firefighter Ben Kinkirk volunteers to pick up a rescue dog so he can visit Mary, who instantly calls him her true love again, but ends up found out. Meanwhile Lucy, who refuses to take off Jeremy's ring, is openly jealous of such a hunky suitor, Ruthie pretends not to care. Robbie's brother Ronald drops by and is furious to hear that his muse Lucy dated Robbie. Annie resigns her teaching post without consulting anyone.

Matt ignores at his peril Robbie and Simon's warning not to believe a girl's claim she needs no gift, especially concerning the diamond engagement ring. Eric's solution within budget, industrial imitation, is 'welcomed' even more bitter, until an heirloom is passed on. Lucy flew along to Buffalo with Mary to 'pick up her stuff', but discovers aboard she wants another shot at Ben. After provoking airport security, Lucy gets an instant crush on gallant, hot cop Kevin Kinkirk. She arranges a double-date with his brother, who turns out to be none other then Ben, who is however most suspicious of record-fickle Mary until Kevin gives the decisive push.