Hydronauts

In the not-so-distant future, the city of Hydropolis has developed the technology to manipulate water at a micro-level. This allowed them to create a new army of robotic servants: sentient fire hydrants known as Hydronauts. But when a corrupt politician takes over the city and destroys most of the Hydronauts, it's up to the last remaining Hydronaut to restore the city to its former glory and rescue the population.