In Brux the Tusked Terror, Max and Lia are on a daring adventure across the seas, chasing after the notorious pirate Red Eye, who plans to steal four ancient Merryn treasures. Their path leads them into conflict with a terrifying Robobeast walrus called Brux, whose tusks and strength pose a formidable threat. Alongside sea monsters like the spider-crab Sythid, the sea scorpion Venor, and the spiked destroyer Monoth, they must battle dangers, solve sea riddles, and outwit Red Eye before the treasures fall into the wrong hands.