Luckily, Lassiter and Henry have made progress figuring out the clues in Shawn’s text message. Henry notices the kicked out taillight and remembers the same childhood lesson. He knows Shawn got himself out and ran into the woods. Lassiter gets a call from Juliet. She and Gus went back to the garage and were told that the mechanic quit, and stole a welding gun from the garage. Unfortunately, he was using a fake name, so they are unable to track him, but he does drive a distinctive vintage Plymouth Roadrunner. Lassiter says they’ll keep an eye out for the car, then he and Henry continue the pursuit on foot through the woods.
Shawn, tied to a chair, regains consciousness as the attendant, Rollins, and the mechanic, MacQuarrie, are in the middle of an argument. Rollins is berating MacQuarrie on his incompetence at handling Shawn. He confirms with MacQuarrie that the truck is ready. The money is almost theirs. He then orders MacQuarrie to kill Shawn, but then changes his mind, deciding he might need a hostage instead. Shawn takes a look around and sees a metal plate with the same weld mark he saw under the ice cream truck. He also sees pictures of MacQuarrie in a special ops uniform and realizes that MacQuarrie is a crack shot. If he had wanted to kill Shawn, he would have. He has a soft side, something Shawn can exploit later.
Back at Shawn’s apartment, Gus and Juliet find a pamphlet from the garage. It must have been what Shawn was looking at when he broke the case. The pamphlet says that the garage not only services ice cream trucks, it also services armored transport vehicles. The ice cream truck crash was just a rehearsal for an armored car robbery. Juliet tracks down the schedule and route of a large money transfer, knowing that is where Shawn’s captors will be.
At the service station, Shawn is confronting MacQuarrie on the robbery. He tells him he knows he welded the bottom of an armored car to create a soft spot, one that is normally not visible but will provide access to the cash once the truck is crashed and flipped. Meanwhile, Henry and Lassiter have tracked Shawn through the woods to the gas station, but Rollins is able to turn them away by claiming he saw the Roadrunner in question but it drove off down the road. Shawn, seeing them go, convinces MacQuarrie to let him call his girlfriend one last time, since this is the end for him. Shawn calls Juliet instead and words his message in such a way that, once repeated to Lassiter, lets the detective know Shawn was back at the gas station all along. Lassiter and Henry turn back to the station only to discover Shawn gone and MacQuarrie dead on the floor. Along with Gus and Juliet, they race to catch up with Rollins and Shawn en route to the armored truck. Shawn is able to break free and jump onto the hood of Lassiter’s car, where he grabs a shotgun from Henry and shoots out the radiator of Rollins’ pick up, stopping his abductor cold.