BritBox's 'The Tower' Commissioned for Season 3, Titled "Gallowstree Lane"

ITV's The Tower, based on the Kate London mystery novels featuring her detective DS Sarah Collins, is officially coming back for a third season after the success of The Tower II: Death Message. The new season, The Tower 3: Gallowstree Lane, named after London's third novel, has been confirmed to be filming starting August 2023, just ahead of Season 2's debut on ITV1. (Seasons 1 and 2 have been available on streaming on ITVX in the U.K. and BritBox in the U.S. for a while now.) Though the ITV announcement does not confirm the new season will come to BritBox in the U.S., the show is rapidly becoming one of its reliable hits since initially picking it up in 2021.

The Tower's first season was well-timed. Based on London's 2015 debut novel, Post-Mortem, the case was based in police corruption that culminated with a woman's body falling from the top of an Estate tower block while the Grenfell Fire was still fresh in viewers' minds. Season 2, Death Message, based on the 2017 novel of the same name, which debuted on BritBox ahead of its U.K. arrival in May 2023, continued that story as Collins, now promoted, has to navigate the internal politics of her new job while also solving crimes assigned to her as punishment by those who weren't so keen on her exposing corruption ways.

Season 3, based on 2019's Gallowstree Lane (the last London novel written before it was picked up for series), will presumably follow the novel's plot, focusing on Collins' superior, DI Shaw. According to the book's synopsis, "Shaw likes the proper criminals, the ones who can plan things. As head of Operation Perseus - a covert police investigation into a powerful criminal network - Shaw is about to make the arrests of his career. But then the brutal murder of a teenager sends a shockwave through the very organization he has been targeting, threatening not only Shaw's case but everyone with a connection to the boy who was killed on Gallowstree Lane..."