The gang return to the Cortex to get data on the mysterious Ninjas. Ulrich opts out of the mission because he has a karate competition to attend, and Jim won't let him skip it. The others don't fare well against the Ninjas until Ulrich arrives, offering them advice that Jim passed on to him; be unexpected. With the advice given by Ulrich, and a new-and-improved, unusually effective bo staff weapon programmed for Yumi, she manages to defeat the three Ninjas easily and gathers the data. In it they find a video clip of Professor Tyron addressing several humans dressed in ninja-like costumes. Ulrich wins the competition and gives his trophy to Jim, thanking him greatly for his advice.
Cast of this episode
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Guest stars
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