McCall races to rescue two siblings who run into trouble after stealing a grocery truck carrying firearms. Meanwhile, Harry and Delilah help Mel through her trauma after her kidnapping.

McCall investigates a death in an apartment building where residents believe the structure is haunted after a young woman suspects her grandmother was pushed down a flight of stairs via supernatural means.

Harry goes undercover in a surprising role to help McCall search for a woman with a secret online persona. Meanwhile, Mel decides to go to therapy and tries her hand at songwriting as a way to heal her trauma.

The team races to rescue a young hacker, who reminds Harry of his past self, being forced to hack for criminals. Meanwhile, Dante is back in town to visit his father and Mel makes a breakthrough in therapy.

The team investigates who is trying to put a hit on a stand-up comedian. Also, McCall grapples with her feelings for Dante, who is still in town deciding how to proceed with Big Ben, and Delilah continues her college search.

McCall and Mel go undercover in a prison to find a woman who went missing on the day she was scheduled to be released.

A joyous holiday season turns into a cartel Christmas for McCall, whose romantic life reaches an inflection point when a crime syndicate holds her, Dante and her ex-husband, Miles (Stephen Bishop), captive in a hospital takeover. Also, Harry strives to break his years-long track record of giving Mel awful holiday presents.

Plot of this episode is not specified yet.
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