Clay captures the Alphas because he believes someone in the group is a mole.

Dr. Rosen successfully leads them out of a jailbreak from Bigington.

While on the run, Dr. Rosen believes Cameron is the mole and takes Gary while Bill fights Cameron.

The real Rosen wakes up in a room somewhere and is about to be killed while Rachel deduces Rosen is an imposter.

The Alphas are able to capture the shape shifting Alpha.