Nobby Clegg, the lead singer of The Bums, enters Addictions Anonymous in hopes to quit drinking...only to his anonymity broken by Billie when she blabs to Trudy who wants to relive old times while Tish wants to save Nobby's soul.
After the Zach disaster, Milt confronts Dave that he is powerless over Billie's..charms and suggest he go to another meeting. But when Billie finds him at an exclusive meeting, she and new sponsor Clark, things turn ugly.
Dave and Billie make peace and vow to see other people. But things don't work for them when Billie finds herself losing her touch with the man she's seeing while Dave gets involved with a lady who has a love for kittens...and a whip.
Trudy starts going to Addictions Anonymous to get even with Billie for saying too much about her in the program. Dave's attempts at making amends goes horribly wrong and lands him behind bars...jail bars.
Trying to come up with some quick cash, Billie starts a phone sex line which doesn't sit well with Dave who makes a bet with her. Meanwhile, Trudy gets sued by her maid and seeks legal aid from Martin Crisp who takes a liking to Trudy.
Max asks Billie to make a toast for his and Trudy's 35th wedding anniversary; only to find herself harboring the secret that Trudy is leaving with Martin on a cruise. Dave has an open mic night at the coffee shop.
With her parents away, Billie uncovers the family safe to find that in their will everything is to be left to Jerry and Billie will receive nothing. Dave and Jackie place a bet on bedding a new member of the program.
Billie meets a new man and decides, on Clark's advice to wait four dates until she sleeps with him. But that doesn't stop her from backsliding with Dave. Meanwhile, Clark goes to Milt for dating advice when he starts seeing a Marine.