Conspiracy vs. Theory - S17-E5
Plot hole: In order to deactivate the bomb vest, Penelope blocks all cell service in that area. But she reacts positively to the disabling of the bomb back in headquarters, and she keeps talking with the team without restoring cell service.
Chosen answer: Back in Target Rich, a hitman named Giuseppe Montolo dies whilst being interrogated by Derek. The men who abducted Derek were hired by his father, Chazz, who seems to blame Derek for his son's death. It's explained further in A Beautiful Disaster.
Annabel Keeley