Veteran ER star Noah Wyle is reuniting with producer Steven Spielberg for the lead in TNT's untitled alien-invasion pilot.

According to The Hollywood Reporter, the project was written by Robert Rodat from an idea he conceived with Spielberg, and is set shortly after aliens have wiped out most of the human population. Wyle will play the leader of a ragtag group of soldiers and civilians who struggle against the occupying alien force.

"It is a privilege to be starting a second series with Noah," said Spielberg, whose company was behind ER. "The first didn't do too badly."

TNT had been looking to extend into series its relationship with Wyle, whom TNT head of programming Michael Wright called "an incredibly talented actor and an extraordinary person."