Complete story — includes the ending
The Forever Knights scientist Dr. Joseph Chadwick sends Sir Morton to kidnap Ship so that the Forever Knights can use him to mass-produce a fleet of interstellar spacecraft with which to attack the homeworld of the alien dragon that escaped them. Morton attacks Ship, capturing the small alien. Ben arrives too late, and the team sets out to find the Knights. Assuming that the Knights have something to do with a medieval-themed track of houses, the team, joined by Julie, attempt to sneak into the main house to rescue Ship from being brainwashed.
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