Natalie Distler

Mike's Christmas spirit gets dampened when Ryan (Nick Jonas, guest star), the father of Kristen's baby, unexpectedly comes back to town after a long absence. Kristin's boyfriend, Kyle, also doesn't know what to make of Ryan's return. Meanwhile, Ed hires Mandy as an elf at Outdoor Man, where she tries to unionize the other elves to get better perks.

In the aftermath of his heroic rescue of Damian, Tommy discovers he has become a sex object for both Sheila and his ex-wife, Janet.

As Sean makes the final preparations for his surgery, Colleen prods her dad into getting revenge for Black Shawn's comments about her.

As Tommy awaits a hearing that will determine his future as a firefighter, Mike is persuaded by his partners to buy a bar, while Black Shawn looks to reveal that he's dating Colleen Gavin.

A close look at video footage from 9/11 leads Tommy to suspect that Jimmy didn't actually die in the World Trade Center attack.

As an arson investigation following the beach house fire targets Tommy, Janet worries that her new baby doesn't like her and Sean tries to cope with Maggie's porn collection.