05/20/2013 10:09 am ET

'Covert Affairs' Season 4 Promo Sees Annie Tracking Moles In The CIA (EXCLUSIVE VIDEO)

When "Covert Affairs" returns for Season 4 on Tues., July 16 (9 p.m. ET on USA), Annie (Piper Perabo) and Auggie (Christopher Gorham) will embark on their most dangerous mission yet.

In HuffPost TV's exclusive promo above, Annie has made a shocking discovery about the security of Langley and turns to Joan (Kari Matchett) and Arthur (Peter Gallagher) with some troubling news. Does it have something to do with the mysterious project Henry Wilcox (Gregory Itzin) enlisted her for at the end of Season 3? Tune in for "Covert Affairs" Season 4 to find out on July 16.

And look out for new characters including Manolo Cardona as Teo Braga, a charismatic, enigmatic Colombian rebel leader with secrets that will impact the CIA; Hill Harper as Calder Michaels, a CIA station chief in Latin America angling for a D.C. promotion; and Michelle Ryan as Teresa Hamilton, "an operative with a shadowy past."

Are you excited to see Annie and Auggie as a couple in Season 4 of "Covert Affairs"?

Summer TV Guide