Ilan Srulovicz

The NCIS team investigates the murder of a retired SEAL who tracked down individuals impersonating military personnel. But the case takes a mysterious turn when the lead suspect is found with the Navy-issued jacket of an officer believed to have been killed in the line of duty in Afghanistan. Also, Brody discovers the normally holiday-obsessed Lasalle is inexplicably unenthusiastic about Christmas.

Tess acquires a Kryptonian box that once belonged to Lionel Luthor (former series star JOHN GLOVER). When Clark accidentally activates the box, he's transported to a parallel universe where Lionel found Clark in the cornfields instead of the Kents. In this universe, Clark Luthor is a murderer and Lois is engaged to Oliver - and both of them hate Clark. Clark must be careful not to tip off Lionel that he's not his son while trying to figure out how to get back to Earth where the monster Clark Luthor was transported in his place. Executive producer Kelly Souders makes her directorial debut.

More refugees pour into the Mutant Underground, but the group faces a threat when they discover one of them is a spy working for Sentinel Services. Meanwhile, Reed visits his estranged father and learns that secrets from his family’s past could prove useful.