TNT has placed a second-season order for the drama series that became cable’s top series launch this year, Deadline.com reports.

The series is the alien-invasion drama "Falling Skies," from Steven Spielberg and DreamWorks TV. The show debuted last month with 8 million total viewers. Since then, it has averaged 6.4 million total viewers in its first three episodes and is also performing well overseas, the story adds.

TNT ordered 10 episodes for the second season, which will air in the summer of 2012.