S2, E11: When Nick finds out that Lisa has taken KiKi to Maryland on his weekend with her, he borrows the Darlings' jet to go and get her back. However, he is joined on the flight by Karen and Brian: Karen is on her way to a sperm bank, while Brian has planned a secret romantic rendezvous with his ex-wife. Meanwhile, Tripp asks Patrick to try to reverse Congressman Charles Whatley's standing against Simon Elder's bio-fuel.