As Kevin's retrial begins, the pressure mounts on Heather to get Kevin back in jail and wrap up the case. Emma has a breakthrough with new evidence, but powers outside of her control seem set to crush her attempts to prove Kevin's innocence.

The forensics seem to prove Kevin's innocence until Heather and the prosecution deliver new evidence that gives Emma an impossible dilemma. Emma finally meets Yusef Attar and her investigation takes a completely new direction.

Locked up in America by the US air force Emma makes the breakthrough she desperately needs. With help from an unexpected source Emma edges closer to finding out the truth.