With plans for a second baby, Kevin (George Stults) tells Lucy (Beverley Mitchell) that moving their family to Crossroads might not be such a good idea for the time being. T-Bone (Colton James) confides to Eric (Stephen Collins) that he's having second thoughts about breaking up with Ruthie (Mackenzie Rosman), who is spending all of her free time lately with her former crush, Martin (Tyler Hoechlin). Sandy's (Haylie Duff) boyfriend, Jonathan (guest star Nick Zano), surprises her with a marriage proposal, and T-Bone's estranged father (guest star Diedrich Bader, "The Drew Carey Show") shows up on the Camden's doorstep.