A lovesick Bonnie realizes how much she misses her ex-boyfriend Brad and turns to Tucker for help reuniting with her true love. But when Brad confesses that he still has feelings for Bonnie, Ben's well-intentioned but misguided advice leads Brad to make a rash decision. Riley wants to have the relationship with Margot she never had with her adoptive mom, but first Riley must learn to appreciate Margot for who she is, flaws and all. Meanwhile, Danny must stop Riley from taking the next step with Philip.

Now that Riley knows the truth about Margot, she decides to find her biological father and uses her parents' high school yearbook as a guide. With a little help from Ben, Riley narrows down the possible candidates to David, the easygoing pastry chef, and Mark, the high-powered attorney. But despite some initial deception and old teenage rivalries resurfacing, Riley finally learns her father's identity. Meanwhile, Tucker is not happy about his parents' divorce and realizes the source of their problems is that Marshall is too uptight. But when Danny asks his mom to help Mr. Dobbs loosen up, Bonnie takes the challenge to a whole new level.