Jason McCann called to warn Nick that he was in danger just before Nick set off an explosive booby-trap in his yard. The police hauled Jason in for question because of his connection to a previous police bombing.
Evidence connecting Jason's guardian, Dr. Huxbee, to the attempt on Nick's life led Nick, Catherine, Detective Vartann, and a member of the bomb squad to an abandoned building. There Huxbee's body was discovered rigged to explode, along with a laser sensor bomb that trapped everyone in the warehouse. Detective Vartann was injured after he set off a booby-trap, and the bomb squad tech gave his life trying to defuse the bomb.
Nick used Jason's cell phone to locate him. A police road block was used to apprehend Jason and his accomplice. He was killed after he pulled a gun trying to kill Nick.
Ray Langston testified in trial against Nate Haskell for attempted murder. Nate Haskell was found guilty, but managed to escape from police custody.