The mind behind NBC’s “One Chicago” universe is bringing a brand new crime thriller to Prime Video. You can stream the first three episodes of “Countdown” on Prime Video, with more to come weekly through the rest of the summer. The new series follows an LAPD detective (Jensen Ackles) brought onto a secret task force with undercover agents from all branches of law enforcement to investigate the murder of a Homeland Security officer; their hunt for the killer soon uncovers a dangerous plot that leaves Det. Meachum in a race against time to save a city of millions. In addition to Ackles, who is best known for his 15-year run on “Supernatural,” the cast of “Countdown” includes Eric Dane, who opened up about his battle with ALS in the lead-up to the series premiere. ‘Countdown’ on Prime Video release date: If you’re reading this, “Countdown” has already started airing! The first three episodes of “Countdown” dropped on Prime Video June 25. New episodes will continue airing every Wednesday through September 3. How to watch ‘Countdown’ for free: “Countdown” is an Amazon Original streaming exclusively on Prime Video, so you’ll have to be an Amazon Prime member to watch the new series. If you aren’t a Prime Video subscriber yet, you can get started with a 30-day Amazon Prime free trial, including Prime perks like the Prime Video streaming service, free two-day shipping, exclusive deals, and more. After the free trial, Amazon Prime costs $14.99/month or $139/year. All 18- to 24-year-olds, regardless of student status, are eligible for a discounted Prime for Young Adults membership as well with age verification. After six months at $0, you’ll pay 50% off the standard Prime monthly price of $14.99/month — just $7.49/month — for up to six years and get all the perks. ‘Countdown’ on Prime Video cast: Jensen Ackles as Mark Meachum Jessica Camacho as Amber Oliveras Eric Dane as Nathan Blythe Violett Beane as Evan Shepherd Uli Latukefu as Lucas Finau Elliot Knight as Keyonte Bell ‘Countdown’ release schedule and episode guide: There are 13 episodes in the Season 1 of “Countdown.” Three are available to stream now, with the rest dropping once weekly through September 3. Below, check out the episode release dates for the rest of Season 1. Episode 1 – June 25 Episode 2 – June 25 Episode 3 – June 25 Episode 4 – July 2 Episode 5 – July 9 Episode 6 – July 16 Episode 7 – July 23 Episode 8 – July 30 Episode 9 – August 6 Episode 10 – August 13 Episode 11 – August 20 Episode 12 – August 27 Episode 13 – September 3 ‘Countdown’ trailer: Why Trust Post Wanted by the New York Post This article was written by Angela Tricarico, Commerce Writer/Reporter for Post Wanted Shopping and New York Post’s streaming property, Decider. Angela keeps readers up to date with cord-cutter-friendly deals, and information on how to watch your favorite sports teams, TV shows, and movies on every streaming service. Not only does Angela test and compare the streaming services she writes about to ensure readers are getting the best prices, but she’s also a superfan specializing in the intersection of shopping, tech, sports, and pop culture. Prior to joining Decider and The New York Post in 2023, she wrote about streaming and consumer tech at Insider Reviews