While Jim stands on trial for his life, Blinky and Claire try to investigate a way to get Jim pardoned. When they find out that there is a spy, they realize that this trial is a sham and all a plot to get Jim out of the way. Can they find out who the culprit is, or will Jim be executed?
It is revealed that Usurna is actually working for Gunmar and she was planning to get rid of the Trollhunters all along.
This marks the final appearance of Vendel, due to being killed by Usurna.