Mick and Megan reunite in the thrilling finale. Sarah andKevin's baby arrives, starting a week of celebration bringingthe O'Briens together one last time in Chesapeake Shores.
Marge is hired as a segment producer on Krusty's new daytimetalk show. But her initial excitement about the job fades whenshe discovers what an endless nightmare it is.
The four remaining teams face another spine-chilling assignmentfrom Ghost Adventures' Zak Bagans. This time, they mustconjure up a ghostly rave party for judges Eddie Jackson,Shinmin Li and Aarti Sequeira inspired by the haunted ShanghaiTunnels that lie beneath the bustling streets of Portland,Oregon.
This episode's celebrity contestants include Phil Rosenthal(playing for Alex's Lemonade Stand Foundation), Carla Hall(playing for 4-H) and Jet Tila (playing for Spikes K-9 Fund).
At a comet watch party, Bob tries to keep Teddy from going offthe deep end, looking for signs from the universe. Meanwhile,the kids try to make their comet wishes come true.
Rosalind returns with a vengeance and Bailey's life is lefthanging in the balance. With a ticking clock, the LAPD and theFBI join forces, and Officer John Nolan is forced to make adeadly decision after a harrowing ultimatum.
With the assistance of his old friend Zeke, Mark chases down alead that might help him finally discover a cure for Eleanor.Without Mark's approval, Eleanor sneaks off to Isaiah's talentshow while Naomi discovers an unsettling pattern to this stringof local murders. Claire, newly reunited with her brother, isforced to make an all-important decision about her future.
After an architect duo who specializes in designing securebuildings is kidnapped, the NCIS team mounts a search to bringthem home. Also, Deeks and Kensi realize they may need to getRosa some help with her schoolwork, and Anna considers acareer outside of law enforcement.