When Diane stumbles onto some websites that give her more than she bargained for, Dre and Bow must take action. Concerned that the internet is corrupting their children, Dre and Bow decide to make their home an internet free-zone and deal with the backlash.

[K] Patterson is missing... and a newly amnesiac Roman is on the loose. Jane and Weller must race Shepherd – and the clock – to find them before it's too late.

Leanne defies Campbell's order and uses the hospital helicopter to reunite a family for the last time. Meanwhile, Willis and Loa use a cell phone app to communicate with an autistic young girl.

As Rossi conducts a profiling course on his birthday, he receives a call from his serial killer nemesis, Tommy Yates, telling him the location of his latest victim.

After an electric heating blanket shorts out while the gang watches the Wiz they look in the mirror and realize they've turned black. They have to figure out how to get back to being themselves by going through all the classic body switch movie shenanigans they encounter.

Riggs and Murtaugh are caught in a turf war between a new generation of drug dealers and a Koreatown gang; Murtaugh is teamed with a temporary new partner; and Trish tries to set up Riggs with her co-worker.

Trying to recover from his Thanksgiving debacle, Cam decides to treat the family to a New Year’s Day feast. After realizing that Cam’s recent attempt is also a complete fail and in order to salvage their meal, Mitch uses a “concierge gift card” that he received as a Christmas gift. Cam soon discovers that the concierge who is on his way to save the day is none other than his ex-boyfriend, Keift, a former circus ringmaster who left him without saying goodbye. Meanwhile, Phil’s dad, Frank arrives with his new girlfriend, who happens to be Phil’s childhood babysitter, which sets him on a confusing tailspin. Finally, Gloria and Jay have to decide who should take care of little Joe if something should ever happen to them.

Anne's pregnancy starts to show as her house-guest goes to work for Mercy. Isaac finds himself in a new role and seems to enjoy it. Plans are made to defeat the dark child and the boy goes to pieces.

The family goes on an annual impromptu family road trip, but Ray has something in store, which angers Maya when she finds out what it is. But Maya’s relentlessness proves to be helpful when she takes control of an emergency situation involving Ray’s appendix.

Bjorn's fleet sails onward and launches a surprise attack; back in Kattegat, Lagertha continues in her quest for power.