Based on a 70's black and white TV show of the same name, title and protagonist, Dr. Richard Kimble is accused of murdering his wife, where what really happened was Richard witnessed it and was able to identify that whoever did it had a fake left arm. Or, maybe it was right. The point is, he's in jail and sentenced to death until the prison bus crashes after a final-escape attempt by one of the other prisoners. Now, Richard is on the run, and when a so-called "murderer" is around and staying in Chicago, trying to find an address to his murderer, and perhaps leading it to the team trying to catch him, led by the merciless Sam Gerard.
I'll give the filmmakers this: the first few minutes, or for Richard, several hours, of having to get away from enemy territory; get some new clothes, maybe change his look from his mugshot, are pretty entertaining, and if this was a movie that didn't actually show if Richard actually committed the crime himself or not, we'd have no doubt about it, especially when Richard not only saves the life of one of the cops designed to send him away, but tells doctors in the area about certain parts of his concussion. The next thing you know, a helicopter is after him and his ambulance getaway, only because the cop ratted him out after saving his life.
This is the type of problem that goes on in the movie an awful lot. Richard steals as little as possible, helps out with others as much as possible, and then the cops simply keep saying they don't care and want him captured, end of story. Seriously, Sam Gerard is a menace of a police officer, saying "I have no idea" during an interview after being asked why he was staying in Chicago, when Richard told him face to face with not just good acting but honest character that he didn't kill his wife.
Another thing is the action sequences. Every prison escape story has or should have at least one chase scene, and most of them are fast, nail-biting, and sometimes tragic, but the ones in The Fugitive are kind of slow, such as when Richard and Sam go face to face down some stairs, as well as the pipe chase and the punch swings on the train. In the end, The Fugitive has a good message and a good ending. That's about it.