Complete story — includes the ending
Oliver tracks down another millionaire from his list right before the latter is killed by an assassin known as Floyd Lawton. Oliver decides to build a new dance club above his hideout as a cover for his nighttime disappearances. While assessing the competition, he finds Thea, who tells him that Laurel and Tommy were involved during Oliver's absence. Laurel becomes suspicious when Oliver does not react to it and concludes he already knew. She and Tommy start dating again. Meanwhile, Oliver enlists the help of IT technician Felicity Smoak in order to learn that the venue for Floyd Lawton's next assignment is an auction which will be attended by many influential businessmen, including Walter. As the vigilante, he enlists the help of Quentin to foil Lawton's plan. Oliver succeeds, apparently killing Lawton in the process, but Diggle is shot during the fight. In order to save Diggle's life, Oliver is forced to reveal his dual identity to him. Flashbacks show that the Asian archer who attacked Oliver was actually trying to help him; Oliver misunderstands and "escapes" from the archer while being pursued by an unknown group of armed men.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Arrow season 1. HTML formatting and reference markers removed. · Content license