The Defenders head for the legendary Nexus - over the centuries a traditional place of healing for Di-Gata Defenders - but the Nexus is not what it seems. Kali, a shape shifting agent of Nazmul, has been charged with obtaining a body host for him. Disguising herself as the Keeper of the Nexus, she welcomes them inside. As Kara’s wizard-like powers start to manifest themselves, Kali decides that Kara, not Mel, should be the one Nazmul seeks.