Alex Carlisle is a repeat white-collar offender, specifically check kiting and ticket scalping. Frank Stroup got him to partake in a plan to rob an armored truck of its cash, which Joe Gallagher seduced coordinator Helen Bramer over in the interest of getting her data files. When the route was detected, the crew hid in a van on the route before the truck was to load any ATMs. They all barged out wearing stockings on their faces, held the guards at gunpoint and fought and restrained them, and then emptied the truck before fleeing.
Over six months, the team was working out how to split the cash, but Frank got greedy and wanted the money for himself. Joe faked his death to escape when he found out, but Carlisle went straight to the getaway vehicle filled with empty bags, where Frank rigged it with explosions while it was in storage. When Carlisle opened the back doors, a blast blew him back an blasted him with fire, killing him instantly. Gallagher and Frank were arrested when Gallagher was fighting for his life against Frank and Frank was arrested after rescuing Helen's son Kevin from him, who Frnak kidnapped for leverage. (CI: "Astoria Helen")