The episode centers on an invitation sent to Mordecai and Rigby for a party celebrating the of Frank Smith (Margaret’s father) as the pilot of Chopper 6.
Mordecai is hesitant to attend because his girlfriend, CJ, cannot make it due to a river-cleaning volunteer commitment. He fears the awkwardness of being at Margaret’s parents' house without CJ, especially since he and Margaret have a complicated history. [S6E20] 1000th Chopper Flight Party
CJ finishes her volunteer work early and decides to surprise Mordecai at the party. The episode centers on an invitation sent to