Tembo Murumbi works as Arthur Rhodes' assistant at Kenya's Wildlife Conservation Bureau, collaborating with the Rhodes family to protect and rehabilitate local wildlife. He nurtures injured animals and confronts threats like poachers, embodying his deep commitment to conservation and earning him the designation "Friend to All Living Things." His professional relationship with the Rhodes family, particularly his bond with Jackie Rhodes, is fundamental to his character.

Tembo's background reflects a significant adaptation from William Stevenson's original novel, where he was portrayed as the family's servant. The animated series redefined him as an "assistant," highlighting his collaborative role in wildlife protection over domestic service. His loyalty to the Rhodes family drives his actions when Jackie finds herself stranded in Kenya after missing her family's departure.

A core conflict erupts when Jackie, attempting to return her bushbaby pet Murphy to its natural habitat, remains in Kenya and seeks Tembo's help. Authorities and media misinterpret the situation, falsely accusing Tembo of kidnapping Jackie. Branded a criminal, a manhunt ensues with orders to shoot him on sight. This "Clear My Name" storyline forces Tembo into significant peril alongside Jackie. He protects her from human threats like corrupt officers and poachers, as well as environmental dangers including drought, wildfires, and wild animals during their journey across the savannah.

Throughout their ordeal, Tembo serves as Jackie's protector and guide. His extensive knowledge of the land and wildlife proves crucial for their survival, reinforcing his role as a mentor figure and "Cool Old Guy." Their journey solidifies an "Intergenerational Friendship," deepening mutual respect as they face adversity together. Tembo's resilience and unwavering moral character ultimately lead to the truth emerging, exonerating him of the kidnapping charges and restoring his reputation.