Picture the doctors of Grey's Anatomy.

Replace their scrubs with an astronaut helmet; the operating room with a space station; and - presto! - you've got Defying Gravity!

The series revolves around eight astronauts ,from five countries, that go on a mysterious six-year mission. The 13-episode adventure - which began filming in January in Vancouver - was pitched to ABC as "Grey's Anatomy in space."

And it worked: the network has picked up the show and will likely air it this summer.

"Since we originally pitched [Defying Gravity] to the international marketplace as Grey's Anatomy in space, getting the series on the network that has Grey's and makes the most successful sci-fi show on TV in Lost is a good fit," said David Madden, the executive VP of Canadian network FtvS.

Ron Livingston (pictured) will headline Defying Gravity, along with Laura Harris, Christina Cox, Malik Yoba and Florentine Lahme.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.