'Harry Wild's Season 4 Trailer Confirms Harry Is Here to Stay

So far in 2025, BritBox has been on a tear, with enough British hits from ITV and the BBC in the first four months to be considered genuine competition to PBS and Masterpiece. It's been an interesting turn of events, especially compared to Acorn TV, which has been around almost a decade longer and has never even begun to compete in such a manner, content to stay a niche offering among a disparate group of them. But watching the upstart competition take such big swings seems to have been what AMC Networks needed to get serious about Acorn TV programming, doubling their offerings with multiple new premieres and hanging it all on its first original hit, Harry Wild.

One of Acorn TV's earliest iterations of its successful "aging star from 25 years ago leads cozy crime series" formula, Harry Wild was an unexpected hit for the streaming service when it initially debuted and a beneficiary of Acorn TV's low churn rates of that era, which audiences slowly growing over the year off between Seasons 1 and 2. Acorn TV recognized the success quickly enough to greenlight Seasons 2 and 3 together and film them back to back, allowing the series to release them in a timely enough manner to build on the existing fandom. 

The success has reached the point that Season 4 wasn't even a question of "if," but "when," as the titular Harry settles into her successful crime-solvers-for-hire business. But life comes at you fast, and she and Fergus already have people pulling them in multiple directions.

Here’s the new season’s synopsis:

Season 4 picks up a year after Season 3, and business couldn’t be better at the Wild/Reid Detective Agency as Harry and Fergus welcome an unexpected client: Charlie Wild. Elsewhere, Harry is hired by a friend and former wild child turned nun, Lola, who stumbles upon a dance school mystery, a Dublin literary tour takes a bloody turn, and more. Meanwhile, Fergus’ hopes of going to college at the same time as Lola are threatened when she gets an incredible offer to study abroad.

Here are the titles for the show’s first three episodes:

• Episode 1: “Heads, I Win, Tails, You Lose” (Monday, May 5)
• Episode 2: “For Whom the Bell Tolls” (May 5)
• Episode 3: “Hold Your Horses, We’ve a Killer to Catch” (Monday, May 12)

Jane Seymour (Dr. Quinn, Medicine Woman) and Rohan Nedd (Whitstable Pearl) will once again co-star alongside Kevin Ryan (Guilt) as Charlie Wild, Rose O’Neill (Sherlock & Daughter) as Lola, Paul Tylak (Kin) as Glenn Talbot, and pop-star turned actor Samantha Mumba (Loftus Hall) as Fergus’ mother, Paula Kenny. Season 3 addition Lochlann O'Mearáin (Small Town, Big Story) also returns as Harry Benedict.

Series creator David Logan wrote all six episodes of Season 4, along with Jo Spain; Robin Quinn will direct all episodes. The series is executive produced by Logan, Spain, and Seymour, along with Daniel March, Klaus Zimmermann, James Gibb, David McLoughlin, Catherine Mackin, and Bea Tammer. 

Harry Wild Season 4 will premiere with two episodes on Acorn TV on Monday, May 5, 2025, with one episode a week to follow through mid-June.