Ep 9. An American Family

In Cheers season 3 episode 9, titled "An American Family", tensions rise when Carla's ex-husband Nick Tortelli pays a surprise visit to Boston. Nick is accompanied by his new wife Loretta and their children, who are quickly revealed to be unruly and difficult to control.

Carla is understandably upset by Nick's arrival and takes out her frustration on everyone around her. Meanwhile, Sam tries to keep the peace by keeping Nick and his family supplied with free drinks. However, the situation escalates when Loretta becomes attracted to the much younger Coach, despite Nick's protests.

As the night wears on, things come to a head when the gang discovers that Loretta and Nick's marriage is not legal, as Nick had never finalized his divorce from Carla. Carla sees an opportunity to get back at Nick and threatens to report him to the authorities unless he pays her a sum of money.

The episode ends with Nick and his family leaving Boston in a hurry, with the gang at Cheers happy to see the back of them. Carla, meanwhile, is left wondering whether she did the right thing by extorting money from her ex-husband.

Overall, "An American Family" is a classic Cheers episode that showcases the show's knack for mixing humor with more serious themes. It's a testament to the strength of the writing and the chemistry between the cast members that the show remains beloved by audiences to this day.