Terry Malloy (Marlon Brando)’s Timeline and Summary

Terry helps lure Joey Doyle to his death, without realizing the gangsters are going to kill him. Oops. Now he feels sad.
He mopes about it, and runs into Joey's sister, realizing he likes her.
When Charley and Johnny make him spy on Father Barry and the dockworkers Barry's trying to turn against Johnny, Terry goes.
But he helps Edie escape the meeting when Johnny's henchmen attack, and then he lies and tells Johnny and Charley that nothing was happening at the meeting.
He falls in love with Edie, but Barry convinces him to tell Edie the truth about his role in Joey's death and finally to testify against Johnny.
After an emotional confrontation, Charley helps save Joey from Johnny's wrath. But Johnny kills Charley in retaliation.
Edie gets back together with Terry, who now wants to seek revenge for Charley's death. Barry convinces him to testify against Johnny in court instead of trying to kill him.
Terry testifies in court, openly accusing Johnny of the murder.
Johnny and his gangsters beat Terry to a bloody pulp, but they can't stop Terry from breaking their power. He walks onto the docks against Johnny's orders, and the rest of the workers follow him.
Terry wins. Johnny loses.