It's Frank's birthday and Doofus, Mary and Áine decide to gift him an intervention. His life's stuck in a cycle, and they want him to break free. Will Frank be able to break the cycle and finally grow up?

When Doofus is recruited to write the music for a local am-dram performance of 'Twelve Angry Women', Frank wants some limelight for himself. But when his new songs don’t receive the acclaim he’d like, how far will Frank go to be the star of the show?

When Frank learns that Mary's going to sell their home, and he'll have to move out on his own, he lashes out and barricades himself in. But he can’t keep her out forever - will Frank finally be forced to leave home for good?

With Mary bed-bound for the day, Frank and Doofus drug her with sleeping pills so they can complete their chores in peace. But in trying to nurse her back to health, have they killed her in the process? And will Frank complete his chores?

With the help of best friend, Doofus, Frank is determined to win back his ex, Áine, by learning MMA, and playing his first gig in years — her grandmother’s funeral. Will Frank succeed in impressing Áine, or will it be a disaster?

Frank and Doofus set out to expose P-B as the "yoked-up party boy" that Frank's sure he is. But, while collecting evidence against him, Frank starts to fall under his spell. Will P-B become his new bestie? Is this the end of Frank and Doofus?