Phoebe visits her boyfriend's shy brother, but the mild-mannered boy discovers his evil side when he gets his hands on one of Max's inventions.
When Ben leaps aboard a 1970s passenger jet as a flight attendant, he must outwit its hijackers before it mysteriously crashes into the Atlantic, and worse, he has to do it all without Ziggy's help.
When Beverly (Wendi McLendon-Covey) complains that Pops (George Segal) is spending too much time with her at home, Murray (Jeff Garlin) takes him back to work at the furniture store. Adam (Sean Giambrone) reluctantly gives away his toys, hoping it will help him get his first kiss.