Mac opens for Lil Wayne and discovers Irish roots; hijinks in Dublin may jeopardize the biggest show of Mac's career.
Mac wants to cure his friends of their addiction to social media by having a cell phone-free camping weekend.
Mac gets the key to Pittsburgh, his hometown, but is nervous about returning.
Mac bets Chelsea that he will finish his Paris bucket list, and if he fails, he must act as her assistant for the day.
The family adopt two puppies.
The family celebrate Christmas together.