After the heist of the Cambridge Merchants Bank, the four thieves blindfold and kidnap the manager Claire Keesey(Rebecca Hall). They take her driver license; release her at an empty beach; and head to Charlestown, Boston. Later, the friends Doug MacRay(Ben Affleck), James Coughlin(Jeremy Renner), Albert 'Gloansy' Magloan(Slaine) and Desmond Elden(Owen Burke) find that Claire also lives in Charlestown and they decide to monitor her steps. Doug MacRay gets close to Claire to know what she might have told to the FBI and they fall in love with each other. Meanwhile, the FBI Special Agent Adam Frawley(Jon Hamm) is assigned to investigate the heists to armored trucks and banks in Charlestown and he concludes that the thieves are the four friends. He joins his team and keeps Doug and his friends under surveillance. Doug decides to move to Florida with Claire and begin a new life; however, the dwellers are trapped in Charlestown and they do not have any way out but dead.