When Jake Rizzo's mother arrives to stay, it doesn't take long for the old problems in their relationship to surface. But she and Ernie talk about mothers and sons and everything's sorted out.

Ernie offers lessons in self defense to a group of senior citizens and feels responsible when one of them is injured while ineptly defending himself. Rizzo finds a more appropriate response to the senior citizens problems with local muggers.

Rizzo and Ernie receive a foreign house guest.