In the season four premiere, Melissa nabs a robbery suspect at the scene, Tracy draws her taser in a stand-off, Mia and Sara pepper-spray an uncooperative suspect and Beth discovers narcotics - and whole lot more - on suspected drug dealers.
Tracy finds herself alone in the middle of an all out neighborhood brawl. Melissa chases down a man accused of choking his girlfriend. Mia & Sara give a life lesson to an at-risk youth. Beth narrowly dodges a collision with a suspicious driver.
Tracy takes down a belligerent drunk woman, Mia and Sara get a mouthful from a man with warrants, Melissa races to a disturbance involving a man with a loaded rifle and Beth tries to scare a young prostitute straight.