Danny enlists his estranged father, Patrick, in their quest for the Spirit Banner. Patrick leads them to a secret base in Laos, where he makes a startling admission to Lexi about the secret he's hiding from his son.

After crash-landing in the jungles of Laos, Lexi is gravely injured, leaving Danny and Patrick in a rush to find refuge. Meanwhile, Chuck uncovers new information on the relationship between the Vatican and the CIA.