The show revolves around the Gallagher family, led by Frank (James McAvoy), a single father who is often absent and struggling with addiction. His children, Lip (Paul Henderson), Ian (Kieran Coulson), Debbie (Gina McKee), Carl (Ethan McCormick), and Liam (Brendan McLoughlin), are left to fend for themselves, often resorting to petty crime and prostitution to make ends meet. The family's eldest daughter, Fiona (Emmy Rossum), takes on a maternal role, caring for her younger siblings and trying to keep the family together.
