The Adventure Zone: Graduation Ep. 22: Open and Shut
The Thundermen have been brought before an Unbroken Chain tribunal. They need to prove that they are worthy of membership or they will lose the chance to win the group's help in the upcoming war. Winning them over might be tricky, especially since the head of the tribunal is Argo's nemesis!
You know what they say: If at first you don't succeed, try tribunal again!