Katie and Tami make fast friends with J.D., a luxury hotel manager whose promise of access to complimentary hotel rooms around the world sounds incredibly enticing. However, Katie’s travel fantasy comes to a screeching halt when she learns J.D. is an aspiring first-time father who’s counting on her for parenting guidance.

When Firehouse 51 is called to the scene of a dangerous blaze inside a 10-story storage unit, Herrmann and Cruz find themselves trapped inside a freight elevator with all communications cut off.

Holden and the Roci face off against Marco's forces and Drummer. Alex and Bobbie attempt a dangerous rescue of Naomi, and the balance of power in the Solar System shifts.

Jimmy challenges JoJo Siwa to a dance battle where they take turns using the dance move generator to make up random dances on the spot, then chats with Kelly Ripa, Siwa and M. Night Shyamalan.

Out in the open sea, Ubbe and the settlers are at the mercy of the elements. Tension mounts between Ubbe and Othere and when baby Ragnar begins to weaken, it's the final straw for Ubbe. Meanwhile, Ivar and Hvitserk return to Kattegat.