Jacob Two Two Meets the Hooded Fang
Jacob Two Two Meets The Hooded Fang is the title of two films based on a novel of the same name by Mordecai Richler.
It is a dark, dirty dungeonlike place where the children work and are kept in cells. There are the three head characters, Master Fish, a fishhuman, Mistress Fowl, a bird like woman and the Hooded Fang himself. They also have green henchmen who spray slime resistors at the children to prevent them escaping. Two child agents try to help him out, as the children also come up with a plan for escape.
Source: Wikipedia