"Black Panther" brought Wakanda to vibrant life, and its sequel, “Black Panther: Wakanda Forever,” explored the underwater depths of Talokan, an Atlantis-like city. Audiences got a closer look at the Talokan forces when a group of Namor's supporters kidnaps Shuri and Riri Williams — as well as a big surprise: whales act as allies to the aquatic army.