An all-star cast spearheads this lesson in social realism. Jackie (Richard Attenborough) lives with his widowed mother and dreams of marrying Kitty, the girl across the street. In a bid to escape the poverty trap, he agrees to participate in a robbery, but when it goes wrong he is sentenced to three years in jail. There he meets various characters planning an escape, and although initially skeptical, he is persuaded by Alfie (Dirk Bogarde) to join the team. But what if their plan fails?