One of the Guys - S1.E43

Rick and L.J. accompany Kshin's class, which includes Marty, a wheelchair-bound boy, on a field trip to the Amazon where they encounter hostile natives. When Kshin and Marty are separated from the group, L.J. and Rick search for them, prompting the teacher to call in the Defenders. Stumbling upon a field of strange flowers cultivated by Ming's minions, Kshin is sprayed by a plant and rendered paralyzed from the waist down. At first he believes the situation hopeless, but Marty points out that they still have their brains. Captured by Ming, Marty uses his remote control device to summon his air-wheelchair and attempts a getaway from Ming. Meanwhile, the Phantom locates Rick and L.J. in the jungle. Ming, furious at being outwitted by two "helpless" boys, stalks Marty and Kshin. Just before he corners them, the Defenders arrive in Terry and foil the Merciless Ming's scheme to take over the world. Kshin's paralysis wears off and Marty is made an honorary Defender.