Adam and Don become super protective of Lowell when they think he might get back together with his cheating ex-wife. Also, Joe experiences an unexpected side effect from his new pacemaker that Bev is less than thrilled with.
Adam encourages Don to give himself food poisoning to get out of babysitting his destructive grandson. Also, Adam and Andi argue over who has to take Kate and her teenage friends dress shopping.
Adam discovers someone is sneaking his boat out at night, and he assumes the culprits are Don and Joe. Also, after Andi makes Kate get a job at the mall, Kate decides she no longer wants to go to college.
When Adam and Don disagree about a new house to flip for their construction business, their bickering reveals bigger issues in their relationship. Also, Andi goes to great lengths to throw the perfect birthday party for Bev.
Kate gets her driver's license, and Adam has a hard time being okay with it, as he questions her abilities. Meanwhile, he loses his license at the DMV.