Big, big changes occurred on The Tomorrow People Season 1 Episode 19.

The Founder offers a treaty to the Tomorrow People, but even as he makes good on his promise, he continues to hunt Jedikiah. When the location of Roger's body is compromised, Jedikiah and John are forced to take some desperate measures.

When all is said and done, everyone's world is turned upside down and one supposed ally reveals their true colors. Who is the person that can no longer be trusted?

Watch The Tomorrow People online to find out.