In a corner table, professional sniper John Hopper (Gary Lockwood) wipes his mouth clean and walks to a phone booth, where he notifies his contact in New York (Richard Webb) to assure Ritchie that the contract will be executed at midnight sharp.

Seconds later, Sandusky and his men walk out. As he steps into the limousine, he inadvertently drops his folder. Hopper fires just as he bends down to pick it up, hitting Sandusky's associate Tom Windom (Sal Ponti) instead.

Steve rouses Oscar in the middle of the night to go view police shots of professional snipers. An exhausted Oscar explains to Steve that despite the fact that he was a witness to murder, he has no business handling the case.

Oscar then gets a call from Washington that makes him sing a different tune. The shooting might not have been an isolated incident. It is believed that the gunman was aiming at renowned state prosecutor Lorin Sandusky to silence him before he has a chance to present incriminating evidence to the grand jury against racketeer Victor Ritchie.

Steve is now assigned to insure Sandusky's protection for the duration of the inquest. According to the law, if Sandusky doesn't testify within twenty-eight hours, the charges against Ritchie will be dropped.

When he gets there, Steve asks Dorsey to write down the list of Ritchie's henchmen. Aside from the three within the organisation, he's heard of a fourth who's a freelance professional sniper they refer to as the 'fall guy'. Steve walks back to Oscar to hand him the information before they drive over to Sandusky's hotel.

As they escort Sandusky inside the building, Steve spots Tanner on the sidewalk and runs after him. He catches up with him as he steps into a taxi. Steve rips the door open, much to the cab driver's (Lew Palter) dismay and grips Hopper.

Steve argues with a sceptic Oscar that there was no mistaken identity and rejects the possibility of a bionic malfunction.

When Hopper realizes that Steve intends to be his shadow until Sandusky's court appearance tomorrow morning, he phones his contact asking to rid him of Austin at whatever cost.

He goes to the tailor shop to question the owner Richard Hanley (Ivor Barry) about Hopper's orders. He finds it peculiar that Hopper should request that two identical suits be made with each order.

He goes up to Sandusky's hotel to report the incident to Oscar. Now they only need to figure out how Hopper could be at two places at once.

Steve returns to Hopper's hotel and sits in the lobby. Upstairs, Hopper meets with his twin brother. They plot to get Austin out of the way for good before he seriously interferes with their plan to kill Sandusky.

At the park, Steve zooms in on Hopper's face and notes a birthmark on the cheek. He sprints back to the courthouse with the key to the mystery: they're twins.

Following the successful trial, a celebration takes place in Sandusky's hotel room. Puzzled, he questions Steve on his incredible ability to identify Hopper on that dark night. Oscar chokes on his drink when Steve breezily replies: I eat a lot of carrots.