JJ almost lost Will and Henry.
An international team of bank robbers decided to take hostages when their heist did not go according to plan. JJ’s beau Will was on duty and was immediately called to the scene. He managed to shoot one of the three robbers, which angered the remaining two so intensely that they demanded that he come into the bank unarmed or they would shoot all of the captives. He immediately decided to go in while JJ could only scream in panic while the team held her back.
While Will was trapped in the building, chained to a bomb, JJ rushed home to find one of the bank robbers in her house, attempting to kill her son. JJ beat the attacker and ran to find Henry. She saw her son shaking in fear in a closet and pulled him into the tightest embrace.
(Season 7, Episode 23 and 24, "Hit" and "Run")