According to "Orphan Black" co-creator Graeme Manson, the clones of both Project Leda and Project Castor are headed for all-out war, and he's brought posters to tease it.

In an interview with People, Manson divulged a few details about the show's third season: "If we're going to save Helena, we have to go up against the Castor Project."

He also explained that the men of Castor "were raised like a little wolf pack in a military-type setting ... They're self-aware and aware of each other and aware that they're multiples and different and special and that they have their own purpose. ... The differences in how they relate to each other is one of the coolest things about it."

"Those questions of 'How far will you go to protect the ones you love?' are big questions for us this season," he concluded.

"Orphan Black" returns Saturday, April 18, at 9 p.m. ET/PT on BBC America.