Complete story — includes the ending
The Plumbers' Helpers see a video of Ben threatening to kill Max. Manny, Helen, Pierce, and Alan go to the Plumber Station to find out what's happening. When they got there they see a video of Max saying to work as a team, Helen wanders off to look for Max, but gets defeated by Ben. Ben also defeats Manny and Pierce, while in the battle with Alan, the other Plumbers Helpers joins the fight to defeat Ben, but he escapes. The Plumbers agree to work as a team, by doing so the defeat Ben and eject him into space as Humongusaur. Max and Ben appears to the ship and tells the Plumbers that it was a test to see their teamwork skills and tells them that they will be going to Plumbers Academy.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Ben 10: Alien Force episodes. HTML formatting and reference markers removed. · Content license