Amanda is alone in the jungle and suddenly feels observed. On the run from the secret observer she falls from a tree and faints. When she wakes up, she has a black Marsu nursed back to health, which it considers to be his adoptive mother, Reyna, who disappeared many years ago. David finds the real Reyna on the internet and invites her to come to his house, where there is a touching reunion between her and her little black Marsu son.
Amanda semble avoir été enlevée. Accompagné de Jean-Pierre, le Marsu part à sa recherche. Lorsqu'il retrouve Amanda, celle-ci est en compagnie de Mars, un Marsupilami noir. Un combat des chefs va bientôt opposer les deux "houba" cousins...
