Abominable and the Invisible City Season 1 Episode 3

Sewer Koi and the Museum Heist

The crew discovers that a massive Koi is the cause of a series of earthquakes and that he is missing his precious pearl, the key to a magical underground dam that controls the sewer’s water levels. It’s going to take a heist to extract the pearl from its display at a local museum, before the sewer floods the whole city!