The Adventures of Tintin S01E11 - The Black Island (2)

Tintin follows Müller and Ivan to Kiltoch. In Kiltoch he gets to know about Black Island where everyone forbids him to go because they think there is a beast there. However, this does not keep Tintin away. He discovers that the Black Island is the forgerers' headquarters. He also discovers that the ""Beast"" is a huge ape called Ranko. On Tintin's notification, the police are able to apprehend the entire gang.