Rumors of a Great Evil are disrupting Grey Beard's community. Many members want to give up and move to a new location. Grey Beard fears that they do not have time to gather enough provisions before winter. As the leader, it is his responsibility to bring the community back together.

After an explosive counsel meeting, Grey Beard soon realizes that the rumors are true. A great evil does exist within his community. Grey Beard must swallow his pride and work with the leader of the chipmunks.

Now Grey Beard and Long-tooth are working together, but young rebels from both sides continue their...