Shane announces to the family that they all need to help him shoot his sketch, "My Friend Poseidon," for his final improv class with each member of the family taking an important role in the execution. The project hits an unexpected bump when a clerk at the costume store insults Suzette's physique and the Snider boys seek justice. And mother and daughter have a sparring match to exert some pent up aggression with one another, which ends in a bloody mess.