The beginning of season 21 finds the series back where it began, with the Broward Sheriff’s Office. First up, the officers chase down a hit and run driver. A long run ends with a ramming, followed by an investigation of the vehicle which uncovers a machete. Next, a known drug area finds a man on a bicycle who tries to flee. A search reveals cocaine on a man who is on probation. Lastly, officers are responding to a call about a suspicious vehicle near a business. The driver begins to flee as officers arrive. An investigation uncovers a bleary-eyed man behind the wheel who claims to be sleeping, yet a bag of white powder gives the officers another idea.