The caption, “Don’t be afraid to do the wrong thing to make things right,” punctuates the screen in the trailer for “Fearless” — and that’s a credo protagonist Emma Banville (Helen McCrory) seems to live by. A human rights lawyer, Emma has taken on a pro bono case involving Kevin Russell (Sam Swainsbury, “Mum”), a young man convicted of murder. Emma believes Kevin when he says he was coerced into making a false confession and sets her sights on getting him justice, no matter the cost. “I’m going to take the gloves off,” she promises in the spot for the Amazon series.

“Taking the gloves off” includes, among other things, concealing evidence, antagonizing cops, avoiding threats from the MI-5 and MI-6, and digging deeper and deeper into a conspiracy involving a police cover-up, a pedophile ring, and/or an American military base.

As Emma tries to untangle the nefarious web surrounding Kevin’s conviction, her colleagues begin to doubt her skills and even her sanity. “You sound completely nuts,” someone tells her. “Then I must be on to something,” Emma replies.

Written and executive produced by Patrick Harbinson (“Homeland”), Season 1 of “Fearless” aired this summer on ITV in the UK. U.S. viewers will be able to stream it on Amazon Prime beginning October 27. The show co-stars Wunmi Mosaku (“Guerrilla”), Robin Weigert (“Jessica Jones”), Rebecca Callard (“To Walk Invisible: The Bronte Sisters”), Jonathan Forbes (“Catastrophe”), and Michael Gambon (“Harry Potter” franchise).

You can catch McCrory in theaters now in Dorota Kobiela and Hugh Welchman’s animation-live-action hybrid biopic about Vincent van Gogh, “Loving Vincent.” McCrory also stars in the BBC/Netflix gangster drama series “Peaky Blinders,” which is expected to air its fourth season later this year. The actress recently appeared in Lone Scherfig’s WWII dramedy “Their Finest.”

Check out the “Fearless” trailer below.