The whole family heads to Bob's cabin in the woods where they discover Mike's mother, Linda, has been hiding from the law. The past gets rehashed and the family gets some closure, but a secret is revealed that could change everything.
Stella, Shea and Martina assume Ethan is gay after they spot him at a male strip club; and Mike and Bob compete to see who's more attractive to other men.
Mike and Martina experiment with Viagra, while Stella receives harsh criticism over her YouTube channel.
Stella becomes a webcam gal. Shea takes a job at a fast food restaurant. Ethan's crush on Shea grows. Bob and Alice disagree about end-of-life issues.
Martina, Stella and Shea join forces to find Mike's mother. Bob and Mike attract attention when they banter as traffic reporters in Mike's helicopter.
One of Martina's patients moves in and refuses to leave. Mike misses his mother. Shea gets a boyfriend. Stella gives Martina's patient a makeover.
The family celebrates Bob and Alice's anniversary by going to the movies, but things don't go as planned when Mike and Martina find a positive pregnancy test.
Mike and Martina set their friend John up with a new girl in order to "Frankenstein" the perfect friend-couple, but when John's ex finds out about it, the whole thing blows up in their faces. Shea, Stella and Ethan take over Bob's bar.
No more sex, booze and paying the bills naked. After 20 years of parenting, empty nesters Mike and Martina are finally reclaiming their wild side. But when both of their two grown daughters unexpectedly move back in and Mike's parents scratch their plans to spend their golden years in Florida, their roost is full again. This new (and very timely) family comedy proves that life is crazy with a full house, especially the second time around.