Tim Moriarty

Danny and Baez team up with two visiting operatives to search for a dangerous Russian fugitive who entered the US on a diplomatic visa.

Michaela is conflicted when she faces her best friend, who is now married to Jared. Mysterious music in Ben's mind moves him to help a fellow Flight 828 passenger connect with his imprisoned son. Olive urges Grace to tell Ben her secret.

Flashbacks reveal how the group coped with the loss of their loved ones after the disappearance of Flight 828. Ben tries to escape the voice in his mind by going on an adventure with Cal, and Michaela struggles with her feelings for Jared.

When Cal wakes with a life-threatening fever, Ben and Michaela point the finger at a mysterious plane passenger, who strangely seems to have vanished.

As the detained passengers undergo experimentation, Ben turns to a friend to help him find them. Michaela gets pulled into a murder investigation.

Ben and Vance team up for a high-stakes race to locate Flight 828's missing passengers. Challenges await Cal as he returns to school.