Markus's position as Thunder Mountain's leader is challenged by brothers who are threatened by the decision to introduce outside community leaders to the secret headquarters.

Jeremiah and Kurdy discovers that someone is a traitor, this leads them to the missing page in Simon's diary. With the help of the diary they find the real reason behind the Big Death.

Erin and Markus goes to St. Louis to hold a conference in an attempt to better the world. Jeremiah does not heed Ezekiel's wishes and visits Milhaven, hoping to find the truth about his father.

Markus struggles to achieve consensus among the factions that could re-build the country. He sends Kurdy with a new partner to rescue some of the delegates who have fallen into very tough hands.

Mister Smith shows Jeremiah and Kurdy a refuge for children who will need protection if war comes, which seems inevitable as Daniel's forces surround Thunder Mountain. The key to victory may lie in the revelation of secrets. (Part 1 of 2)

A painful truth sets Jeremiah's course while Sims prepares to attack the Alliance. Markus and Kurdy must combat enemy forces outside and within Thunder Mountain itself to protect a future worth living in. (Part 2 of 2)