Michael Fassbender portrays "Quintus," desperately pushing through snow after Picts raid his outpost. His mission is to deliver a warning to "Gen. Virilus" (Dominic West) before the entirety of Britain falls under the control of these aggressive warriors. The ninth legion, led by Virilus, then moves north into a dangerous and uncharted area—accompanied by “Etain” (Olga Kurylenko)—in pursuit of retribution. They venture deeper into hostile lands until treachery and misfortune strike. Only "Quintus" and a small group survive the ordeal. Will they reach Hadrian's Wall and find refuge? The film’s cinematography is commendable; the Scottish landscapes are showcased, highlighting their harshness and desolation as the soldiers attempt to evade their pursuers. However, most of the rest left me feeling let down. The performances and script aren't particularly strong, and aside from Riz Ahmed’s character, "Tarak"—who demonstrates skill with a blade—and his quick-acting poisonous mushrooms, it all feels somewhat awkward and plodding, weighed down by an excessive musical score. Although the fight sequences are generally well done and occasionally possess a sense of genuine ferocity, Fassbender and West don't seem fully engaged, and the movie felt considerably longer than its 100-minute runtime. I enjoy this type of story, and I’ve seen films that were far worse, but considering the likely substantial production costs, it could have been significantly improved with less dialogue, more thoughtful casting choices, and a greater emphasis on action.

Source on TMDB