As the title indicates, this is the third (and final) movie in a trilogy featuring Frank Martin (Statham), a professional driver who will transport anything for a price, no questions asked.
One night, a car crashes into Frank's home. Both the male driver and a drugged woman passenger are wearing large metal bracelets. The driver is driven away in an ambulance, but the ambulance explodes before it gets too far. Frank is knocked out by somebody.
When he regains consciousness, he finds a bracelet on his wrist. Johnson (Knepper) offers him a job. He warns Frank that if he gets too far away from his car, the bracelet will explode. Without much choice, Frank accepts. Valentina (Rudakova), the car passenger, goes along. Frank eventually realizes that Valentina herself is what he is transporting. Meanwhile, Johnson's associates blackmail Ukrainian Environmental Agency Minister Leonid Tomilenko into allowing a ship with a toxic cargo into the country, using his daughter Valentina as leverage.
When Frank sees a friend about trying to remove the bracelet, Johnson decides to replace him. The first attempt fails, but eventually Frank ends up in the middle of a bridge surrounded by Johnson's men. After letting Valentina out, he drives off the bridge into the water. Johnson thinks he has drowned, but Frank breathes air from one of the tires and later drives out of the water.
Johnson takes Valentina aboard a train, but Frank launches his car from an overpass into the back of the train and dispatches Johnson's men. As for Johnson, Frank puts his bracelet on Johnson's wrist, then pushes his car off the train. When it gets far enough away, Johnson is blown up.
Best part of story, including ending:
Plenty of action in a violent, but not gory manner.
Best scene in story:
Frank's would-be replacement steals his car, and Frank has to use any means available (including a kid's bicycle) to catch up before being blown up.
Opinion about the main character:
He generates mayhem with a certain style.