The Night Crew (2013)

The pilot episode "The Calamari Conflict" is about three janitors: Joe(20's something slacker),Franklin(middle-age), and Cheese(a cyborg) are busy about their normal night shift routine cleaning toilets when they discover a mysterious clog in the pipes. The guys then venture into the water recycling room to fix the clog only to find a legion of squid creatures being the cause. They must then find a way to rid the ship of these monster while trying to save themselves from harm at the same time.