Mexican Stand-Off

Thatcher confronts Carl Radford when he discovers through a friend in MIT that new evidence suggests that a third party was involved in the shooting of his father, only for Carl to reveal that his mother, Irene, was the one who pull the trigger. After giving David Radford a severe beating, Thatcher goes on the rampage and attempts to finish the Radfords once and for all - confronting Irene face to face, before being shot himself by a venomous David. Thatcher manages to escape, but ends up going on the run to save his own skin. Meanwhile, Nixon is disturbed by three roses which arrive at the station, until she is sent a link to a website which shows Abi locked in a shipping container - with a clock in the corner.

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S20E83 - Closer to Home