With less than one week left until Season 3 of Orphan Black debuts on BBC America, the network has revealed new character posters, featuring the various clones played by both Tatiana Maslany and Ari Millen. The groundbreaking series' second season brought new enemies to light, culminating in a shocking finale which revealed a new line of militaristic male clones, played by Ari Millen. Season 3 plunges the clone sisterhood, Project Leda, into unexpected territory with the realization that they're not alone. Orphan Black returns Saturday, April 18, 9:00pm ET on BBC America.

After neutralizing the threat by the DYAD Institute (the company that monitored them) - Sarah, Helena, Cosima and Alison (Maslany) are finally all united in their journey towards the truth of who and what they are. But new discoveries that include Helena's kidnapping, a book that could contain the answers to their existence and the most shocking discovery of them all - a set of treacherous male clones with an unknown agenda - will test how tight their new bonds are.

No sooner has Sarah caught her breath after a stealthy escape from DYAD and the ruthless clone Rachel (Maslany), she is called upon to face the crazed, captive Castor clone, Rudy (Millen). But it is the discovery of Helena's disappearance that spurs Sarah into action, rallying her sisters in the quest to reunite their clone family, and find peace once and for all. Their greatest threat is a band of highly trained soldiers - identical brothers dubbed Project Castor. Unlike the sisterhood, Mark, Rudy, Seth, Miller and others (Millen) grew up together, fully aware of who and what they are. Developed by the military, this wolf pack was raised as regimented clones - singular in thought, movement and allegiance. Hell-bent on kicking up dirt, they're dispatched to tackle their mission from all sides. But differences in approach betray cracks in their armor, and may be the very thing the sisters need to escape their clutches. Take a look at the new character posters below to get ready for Orphan Black returning this weekend on BBC America.

<strong><em>Orphan Black</em></strong> - Season 3 photo 1
<strong><em>Orphan Black</em></strong> - Season 3 photo 2
<strong><em>Orphan Black</em></strong> - Season 3 photo 3
<strong><em>Orphan Black</em></strong> - Season 3 photo 4
<strong><em>Orphan Black</em></strong> - Season 3 photo 5
<strong><em>Orphan Black</em></strong> - Season 3 photo 6