The Best Episodes Written By Isaac Sastre

As Maggie begins to recount details of how the members of the team were killed, the search team discovers a frozen hand peeking out from the snow near the base.

Arthur reveals that the body found by the team was that of Sarah Jackson's. Meanwhile, Maggie discloses that Sarah's death was not an accident. She was murdered.

Jolted by the revelation of Sarah's death, Maggie reveals that the killer was looking for something which Maggie found and kept with her.

Zach goes missing before he can release the DNA results from Kowalski’s murder. Yuto brings Wilde the surprising results of his web search. Olivia escalates her search for the famous scientist.