Jake's loyalty in Fu Dog wanes as he constantly fails to help him out in their partnership. When Fu allows his animal guardian license to expire once again, Jake is assigned a temporary animal guardian: a cool new "hip-hop" helper monkey, "Bananas B.", to replace him, who he quickly takes a liking to and he ignores Fu, causing him to lose his chance to renew his license. But the true loyalty of the animal helpers is put to the test when Chang escapes from prison and exacts revenge on Jake. Bananas proves to be a coward. Bananas B. tells Jake he won't be needing a Help monkey and defects to Chang's side and she prepares to exact her revenge on Jake. Trixie and Spud, whose own relationship was strained after a misunderstanding, make up and convince Fu to help Jake as animal guardian or not, Jake is his best friend. Fu saves Jake who defeats Chang, but when forced to chose between saving Fu or letting her go, Jake saves Fu. Jake later appeals to the Animal Guardian review board and gets them to reinstate Fu's license, pointing out Fu's loyalty and friendship.