Kim Possible S02E10 - The Fearless Ferret

On a trip for his hospital volunteer work Ron is roped into the life of an old wealthy hermit and assumes his costume and tools as the next Fearless Ferret crime-fighter. However, White Stripe, one of the Fearless Ferret's old enemies, returns for revenge. Discovering Ron's new secret life, Kim finds there is more to his new mentor than meets the eye.