Allen’s search for his biological mother (voice of Lisa Kudrow) spurs dreams of his parents’ everlasting happiness, but winds up giving new meaning to the term “nuclear family.”

Much to his teacher’s (guest voice Leslie Mann) dismay Allen Gregory produces a play

An illness forces Joel to stay home, but his popularity is in jeopardy when Allen presumes to take his place in the social pecking order at school. Meanwhile, Richard makes his presence felt at his father’s company.

Richard pitches in to plan Allen’s first school dance, but Allen is perturbed when he doesn’t get the invitation he wanted. Meanwhile, Richard gets jealous when Jeremy lands a DJ gig at a roller rink.

When Allen learns that class rival Joel has a girlfriend, he leaks details of a sex-tape scandal involving Principal Gottlieb. Meanwhile, Richard and Jeremy try to improve their daughter Julie’s image by paying cool kids to hang out with her.