From "Young Sherlock" to "Mercy": What's New on Prime Video in March 2026
March is about to make your evenings significantly more interesting. Prime Video is kicking off the month with two titles that couldn't be more different in tone, setting, or era, yet both share a magnetic pull that makes them impossible to ignore. One plunges you into the fog-drenched corridors of Victorian Oxford. The other traps you inside a sterile courtroom of the future where justice runs on code. Both are ready to binge with your Prime membership, so clear the schedule, silence the group chat, and settle in.
Young Sherlock
Young Sherlock is not the Holmes you think you know, and that is precisely the point. This Amazon Original from director Guy Ritchie, who practically reinvented the character for a modern audience with his 2009 film, strips the legend back even further. The eight-episode series drops us into 1870s Oxford, where a volatile, unpolished 19-year-old Sherlock stumbles into his very first murder case. There are no iconic companions yet, no Baker Street address, no carefully cultivated mystique. What there is, however, is a young man whose brilliance is matched only by his recklessness, navigating a conspiracy that stretches far beyond the university walls. Ritchie brings his trademark kinetic energy to every frame, blending period detail with a propulsive, almost punk sensibility that makes the Victorian setting feel thrillingly alive. If you ever wondered what made Sherlock Holmes into Sherlock Holmes, this is your answer.
Mercy
Mercy operates on an entirely different frequency, and it will not let you breathe. Set in a near-future Los Angeles where the justice system has been handed over to artificial intelligence, the film follows LAPD Detective Chris Raven, played by Chris Pratt in what might be his most intense role to date, as he is accused of murdering his wife. His trial is not months of courtroom drama. It is 90 minutes. In real time. Opposite him sits an AI judge, portrayed with chilling composure by Rebecca Ferguson, whose performance alone is worth the watch. The film unfolds with the suffocating urgency of a ticking clock, forcing you to question every piece of evidence, every flicker of emotion, and every assumption you make about guilt and innocence. It is smart, relentless, and the kind of dystopian storytelling that feels uncomfortably close to possible.