Where will you be at 8 p.m. on September 22?

If you're a fan of NCIS, you better be tuned to CBS.

So says the show's executive producer, Shane Brennan, who told Entertainment Weekly that the seventh season premiere is a game-changer.

"You cannot miss the first minute of our season premiere," he said. "You'll think you know what's going on, but then you'll go, 'What just happened?!?'"

Brennan also said Tony and Ziva's relationship "will evolve rapidly," adding that the pair will sleep together at some point and "it'll be very unexpected."

In this the twist he refers to in the opening of the season seven opener? Guess we'll need to tune in and find out.

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