Newly reinstated Sheriff's Deputy Lucky Dey is back in a patrol car as rookie Shia St. George's training officer. The simple rupture of a water main and Lucky's obsession with a deplorable ghettocide set them on a collision course with a ruthless O.G. (Original Gangster) and entrepreneur whose influence ripples from the storm drains of the inner city to the top tiers of Los Angeles city government.

It's the Fourth of July holiday and Los Angeles is smothered in record heat. Saddled by their obnoxious ride-along, a blockbuster Hollywood movie director, Lucky and Shia's...