Plot summary
When Francis and Piama choose to celebrate Francis' 21st birthday at the house, Hal is reminded of a promise he made to a young Francis after missing his son's play, involving a motorcycle trip. Hal and Francis sneak off and have a great time until it emerges that Francis has been attending Alcoholics Anonymous meetings, upsetting Hal, who is reminded of just how much he's missed out on. Meanwhile, Lois and Piama finally start bonding over their anger towards their husbands, especially since Hal and Francis broke Lois' "No Motorcycles" rule while Malcolm, Dewey, and Reese are held captive in their own home by a bully who wants to beat one of them up.
Credits
Adapted from Wikipedia contributors, Malcolm in the Middle season 6. HTML formatting and reference markers removed.