Reacher Finale Streams Tonight, Plus The Spin-Off, Slow Horses Returns And South Park Is Back

A full slate of premieres and finales for September 16 is detailed in TVLine‘s What To Watch Wednesday column, ranging across broadcast and streaming platforms with a wide variety of content. The main draw is the season 4 finale of Reacher and its spin-off Neagley, though there is plenty more on offer: Slow Horses comes back for season 6, South Park begins season 29, and a Formula 1 driver attempts to overtake 100 other racers in a go-kart contest. The list is presented in order of when the shows begin.

Reacher Wraps, Neagley Begins

The fourth season of Reacher wraps up on Prime Video with the protagonist locked in conflict against those behind Anna’s death, while Jacob confronts a defining moment. Plum gets his chance at redemption. Afterward, the Reacher universe grows with Neagley, also on Prime Video, which drops eight episodes at once. Maria Sten stars as Frances Neagley, a private investigator whose old friend is killed in a suspicious accident, driving her to seek vengeance.

Slow Horses Season 6 Premiere

Apple TV hosts the return of Slow Horses for its 6 season. The story opens with River preparing for his grandfather’s funeral while Lamb investigates the death of a former Slow Horse.

South Park Returns Biweekly

Comedy Central brings back South Park, beginning its 29 season with a new episode that airs every other week. The title for this first outing is “AKA South America,” and it finds e-bikes landing in South America, sending the boys to take over the streets while the parents there hardly recognize their own neighborhood.

Formula 1 Driver Takes On 100 Racers

Comedian Mo Gilligan hosts Max vs. 100, a live event airing on Disney+ and the ESPN App. Four-time Formula 1 World Champion Max Verstappen takes part in a massive go-kart race at Silverstone, where he tries to pass 100 drivers. The source describes it as a spectacle, and since it is a live event, its result has yet to be determined.

Other Premieres and Finales

• The Challenge premieres on Paramount+ with shocking news hitting before a bizarre feast, as teams face dwindling numbers, fate, hierarchy, and a new pool boy.
• Golden Axe premieres on Paramount+ with a 10-episode binge. The series follows legendary warriors Ax Battler, Tyris Flare, and Gilius Thunderhead (voiced by Liam McIntyre, Lisa Gilroy, and Matthew Rhys) as they reunite to save Yuria from the evil giant Death Adder, who just won’t seem to stay dead.
• Route 187 premieres on Paramount+ with a four-episode binge. Along South Winslow’s violence-plagued Route 87, a relentless print journalist investigates a deadly bus ride and uncovers a serial killer who has been operating undetected for years; Christopher Livingston, Taiv Lee, and Elijah Collins star.
• Ted Lasso continues on Apple TV, with Alice and Ted trying to step outside their comfort zones and Zelda helping with a new problem at Richmond.
• Big Brother airs on CBS, with six houseguests — including current nominees Barrett, Melody, and Drew — competing for the Power of Veto.
• Dancing With the Stars airs Night 2 of the premiere on ABC, with female celebrities performing to a No. 1 song from the year they were born, and one female celebrity eliminated at the end of the night.
• DWTS After Party airs on ABC, with host Robert Irwin checking in with eliminated contestants and breaking down the best moments with “DWTS” alumni.
• The Real Housewives of Salt Lake City starts season 7 on Bravo, with the women of Salt Lake City putting their differences aside to support Mary as she copes with an unimaginable loss.
• Nation’s Dumbest ends its first season on Fox, with the last two celebrities going head-to-head, each one desperate to avoid being crowned “The Nation’s Dumbest.”
• Totally ’90s House airs on HGTV, with teams of ’90s stars competing to renovate retro bathrooms; Keshia, Matthew, and Joey shop for tile, and Brian, Beverley, and Jodie try to deliver a bathroom from this century.
• Next Gen NYC airs a season 2 reunion (part 1 of 2) on Bravo, with accusations of manipulation and dishonesty sparking heated confrontations among the group; Charlie faces questions about his intentions toward Ariana.
• Age of Ices airs on PBS, narrated by David Tennant, following scientists into Earth’s frozen frontiers to investigate the dramatic changes transforming the planet’s polar regions.
• The Ark airs on Syfy, with Brice nearing the breaking point while the crew investigates a secret organization.
• The Great American Road Rally premieres on The CW, with Ian Ziering taking audiences on a journey across Route 66, combining adventure, competition, entertainment, community celebration, and philanthropy.
• MasterChef airs season 16 finale on Fox, with finalists presenting dishes inspired by their journeys through the Global Gauntlet and a winner revealed.

Key Facts Box

• Reacher: Season 4 finale on Prime Video; Neagley spin-off binge-drops eight episodes on Prime Video
• Slow Horses: Season 6 premiere on Apple TV
• South Park: Season 29 premiere, biweekly episodes on Comedy Central
• Max vs. 100: Live event on Disney+ and ESPN App, hosted by Mo Gilligan
• Golden Axe: 10-episode binge on Paramount+
• Route 187: Four-episode binge on Paramount+

Comparison Table

A complete rundown of everything airing on television this Wednesday can be found at tvline.com, which sets out all ten shows in the sequence they start.

Reacher · Slow Horses · South Park · Streaming · TV premiere