Shark

Shark was at the head of the advance guard to confront Riptide and the dragonets of destiny as they approached the Summer Palace. After Riptide claimed that he had found Tsunami, the SeaWing tribe's alleged missing princess, Shark was skeptical. After Tsunami presented her spiral wing markings, undoubtedly marking her as SeaWing royalty, Shark reluctantly accepted that she was a princess and ordered his troops to bring Tsunami to the palace and to kill Clay, Glory, Starflight, and Sunny. Tsunami protested, and Shark eventually signaled for his guard to stand aside, leaving Tsunami's companions unharmed.

Shark led the dragonets, Riptide, and Tsunami to the Summer Palace. Shark stood silently on one of the spirals of a pillar while Tsunami introduced herself to a portion of the SeaWing tribe. He then joined Tsunami and her companions, along with Anemone, Coral, and nine other SeaWings on the royal pavilion. He stood aside as seven of them ushered the dragonets into a prison cave on Coral's orders. Anemone, Coral, Moray, Piranha, Riptide, Shark, and Tsunami then swam to the border of the Summer Palace in order to investigate the dead body of an unknown SkyWing (later revealed to be Kestrel). After flying back to the palace, Coral and a few Council members (one of whom was likely Shark) conducted a war meeting.

The next morning, Shark was observed sitting in a pool labeled 'DEFENSE' during a Council meeting. After a time of eating in silence, Shark reported to Coral that he was concerned about the palace defenses, accusing the dragonets to be a danger in their midst. When Tsunami confessed that Gill was killed in the SkyWing arena, she felt as if Shark had guessed the truth, and he knew that the actual cause of Gill's death was Tsunami herself, who was forced to combat him while she was imprisoned in the Sky Kingdom. Coral then disbanded the council meeting so she could grieve for her deceased husband.

Coral mentioned that she had sent Shark to the Deep Palace after that morning's council meeting in order to check on Tortoise and her eggs. After discovering that one of her eggs had been smashed, however, she punished Tortoise by yanking out all of her teeth one by one and then fatally stabbing her through the belly. Before Tortoise died, she pointed at Shark amongst the spectating crowd, Coral afterward having a heated discussion with him in Aquatic. Later, it was revealed by Anemone that, according to Tortoise, Shark had brought Tortoise an octopus to eat and granted her permission to leave her post.

Later, when Tsunami asked Flounder, Herring, Kelp, and Snail for a key to Clay's chains, they protested, mentioning that Shark had given them orders to keep him imprisoned within the cave. Tsunami eventually convinced them through discussion and a promise to keep each of their families safe if she ever became the SeaWing queen.

Next morning, in front of Blister, her SandWing guards, and several members of the SeaWing tribe, Tsunami loudly accused Shark of giving his soldiers orders to chain Clay; aware that she was being watched, Coral had no choice but to order Shark into the underwater dungeons. Shark did not protest, only snarling at the guards who approached him and giving Tsunami a look of hatred before swimming towards the prison himself.