Chased by Mumatra hunters, Ty-Gor and Malma escape on a raft. The raft is spotted by the steamship, The Junglier.
Ty-Gor is pleased to find Joan and her explorer father onboard. When the Mumatras catch up to the boat, the jungle boy and his adoptive mother-tiger fend them off. Ty-Gor accepts and invitation by Joan and her father to return with them to civilization.