Suits Season 4
Suits Season 4 SUITSonUSA/facebook

Suits Season 4 Episode 9 will air tonight (August 13) and looks like some dark secrets are about to be uncovered as the preview clip suggests 'the ultimate betrayal' by Louis Litt.

According to the official Synopsis of Suits Season 4 Episode 9 titled 'Gone', "The SEC investigation comes to a head as Sean Cahill begins a round of depositions -- no one at Pearson Specter is safe, and no topic is off limits, as the inquisition unearths secrets both professional and personal."

Check out the preview clip of the upcoming episode below:

The episode will be shown in the US on August 13 at 9pm ET/PT on the USA Network.

Click here to watch the episode online via live stream.

You can also click here to catch the episode on the USA Network official website after it airs on TV.

The show will also soon be airing its mid-season finale titled 'This is Rome' next week (August 20). With things heating up at Pearson Spectre, it remains to be seen how things unfold in the popular drama series.

The official synopsis of 'This is Rome' reads: "Harvey and Jessica try to protect the firm from competitors; Louis tries to balance his personal and professional affairs."

Meanwhile, Suits has been renewed for a fifth season by the USA Network. Season 5 will consist of 16 episodes and is slated to begin airing during summer 2015, reports Entertainment Weekly.

"With some of the best writing on television, and a brilliant ensemble cast, we anticipate a spectacular fifth season for a series that has become a marquee property for USA," Chris McCumber, president of USA Network, said in a statement, adding that the show "continues to fire on all cylinders, delivering provocative storytelling and complex characters that viewers can't get enough of."