TMDb/Krypto Saves the Day! Celebrity DC's Krypto animated series finale is here! Watch Krypto Saves the Day: Coastal Catastrophe on HBO Max, plus a Supergirl cameo. April 27, 2026 AceShowbiz - DC has quietly delivered a delightful surprise for its fans with the release of the final episode of the animated short series centered on Superman's mischievous canine companion. The fourth and concluding installment, titled Krypto Saves the Day: Coastal Catastrophe, premiered on HBO Max on April 18, completing the entire four-part series.