Alex Tyree (Thomas Jane) is the titular One Texas Ranger. He takes down a buggy full of criminals but one gets away. He is recruited by Agent Jennifer Smith (Dominique Tipper) from British Intelligence to retrieve Irish terrorist Declan McBride (Dean Jagger) who is imprisoned in Mexico. Declan escapes and is set to blow up London.
This starts off bad. His banter with Tom is supposed to be fun and endearing to the audience. I did not find that to be the case. His gun battle with the buggy four starts out good, but there is too much bad writing. Why doesn't he take his horse? How does a bad guy double back to take Tom hostage? At least, it's still in Texas. Once Agent Smith shows up, the movie goes down a bad rabbit hole. First, she's a non-descript British Intelligence. The writing should be more specific. Writer/director Jesse V. Johnson probably thought that it would be fun to have a cowboy and a British gentleman team up. I can see that pitch. I don't see it on the screen.