Now a government agent, Ben investigates unexplained extraterrestrial activity.

After a mysterious incident in New Mexico, two young girls’ lives are on the line.

Ben meets Hannah Carson (Eliza Taylor joining the cast), who may be more than she appears.

Air Date: Wednesday, Oct. 18 at 8 p.m. ET/PT on NBC.

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QUANTUM LEAP -- "Closure Encounters" Episode 203 -- Pictured: (l-r) Alison Thornton as Carrie Baker, Ashlee Grubbs as Melanie, Raymond Lee as Dr. Ben Song -- (Photo by: NBC)