Bram's escapades outside the Colony walls are on the verge of a devistating end.

'Colony' USA: 'Darker Days' Are Coming, EP Teases Second Half Of Season

The teen has spent several episodes exploiting the wall's one weak spot, but after several resistance attacks in "Zero Day," the youngster's supply runs might come to a crashing halt. Proxy Snyder is in on the secret in a new sneak peek.

From the look Will and Beau just shared, it's safe to say they know about the tunnel as well. The question is, how did they find out? Does Will know about his son's adventures, or will Kate's apparent involvement with the Zero Day attacks tip them off?

'Colony' USA: Will We Ever See The Aliens? EP Talks Future Of The RAPs

To make matters worse, there is always the chance that Bram could find himself trapped outside the walls if Snyder gets his way. The high schooler is desperate to know what the RAPs are up to, and "In From the Cold" saw him formulating a plan to get his hands on a little expensive astronomy tech. Unfortunately, doing so will require Bram to venture much farther than the Downtown ruins.

In an ideal world, Beau and the Bowman's would use the tunnel to leave the Los Angeles bloc in the dust. With Charlie still MIA, however, Will and Kate are trapped like rats.

Find out what's next for the Bowman clan when Colony airs Thursdays at 10 p.m. ET on USA.

Tags: Colony television usa