The fifth and final season brings Sarah and the sestras to their darkest days in an effort to finally cut off the head of the snake and win their freedom. Throughout the season, the sisters individually delve into their past to confront personal struggles and emerge stronger through these self-explorations. Despite the great risk to attain freedom for themselves, their families, and the host of clone sisters they've yet to meet, clone club uncovers the missing pieces of the insidious conspiracy to finally learn the story behind their origin.

The new season sees Sarah returning home from her Icelandic hideout to track down an elusive new ally tied to deceased clone Beth, whose identity Sarah stole in the series' first episode. With the stakes higher than ever before, Sarah and her sisters band together to uncover the missing chapter of the clone conspiracy – following Beth's footsteps into a dangerous relationship with a potent enemy who holds the key to their survival.

Orphan Black returns for an electrifying third season that introduces a dangerous new threat to the 'clone club' sisterhood. Just as Sarah and her clone sisters were beginning to piece together the complex conspiracy behind the shadowy Dyad Institute, the discovery of Project Castor - a top-secret military project producing highly trained male clones - throws their lives back into turmoil.