Later, Juliet shows Shawn a picture of the one the bad guys The Mantis knocked out. Next to him is a bag of drugs. Shawn SV FB's to the moment he saw this same guy on the ground and immediately remembers that there wasn't a bag of drugs next to the body, and puts it together that The Mantis was the one who planted the bag of drugs next to the criminal. From this, Shawn theorizes that The Mantis was creating this crime scene. But SBPD isn't quick to buy into Shawn's theory.
The Mantis sends Shawn the clothes he stole off Shawn's body when he took him down the other night.
Just then, Juliet gets a tip from The Mantis: to run DNA on the perp and therefore get led to an unsolved murder from last year. He also mentions Camino's next meeting time.
They arrive at the supposed Syndicate meeting location and see The Mantis standing over a dead body with blood on his hands. Mantis then flees the scene. They immediately think Mantis was the one who murdered him.
As much as Shawn dislikes this Mantis guy, he doesn't believe he's a murderer. Armed with this theory, Shawn remembers that the Mantis sent the clothes he stole from Shawn back to him from the cleaners. Inside the shirt, Shawn sees a tag that leads them to the Dry Cleaners that The Mantis used. There, they get a number that leads them to an address: the Mantis's apartment downtown.
At the apartment, they discover The Mantis's true identity... he is Reginald Parker — the reporter that was questioning Lassiter at the SBPD earlier. The Mantis explains his reasoning for vigilantism and that he was set-up for murder by the syndicate. Shawn and Gus believe him, as his story checks out. The Mantis says he is going to retire his Mantis character in light of this murder accusation.
However, Shawn convinces him that there is still time to catch the bad guys and absolve Mantis's tarnished name. But Mantis says he could never fully take down the syndicate because he had no idea how the drugs were actually getting to the syndicate. Right then, Shawn SV FB's to an open cargo container containing panes of glass he saw at the docks. From this, Shawn makes the determination that the syndicate had been moving their product by melting it down and mixing it in glass. Armed with this new theory, The Mantis suits back up and is able to convince Gus and Shawn to suit up with him, as "super hero decoys" and to go catch the bad guys. Shawn wears a baseball catcher's outfit, and Gus is dressed as his "Tap Man" super hero character from childhood.
At the warehouse, our three "super heroes" — The Mantis, The Catch & Tap Man — work fast to try to take down the syndicate. The Mantis is able to take down a bunch of the bad guys before the SWAT team arrives and is able to take care of the rest. However, in the midst of all of this, The Mantis somehow gets away undetected, leaving Shawn, Gus, and the rest of the SBPD confused as to why he would flee.
Later, Shawn stops by Mantis's apartment but is shocked to see that the entire place has been cleared out, and The Mantis is nowhere to be found. Just then, Shawn realizes something — that The Mantis's goal wasn't to take down the syndicate, but rather to steal the syndicate's millions of dollars in drug money once he had taken them out. Shawn realizes what he must do: suit up as The Catch again and try to find Mantis in the midst of fleeing the city.
The Catch and The Mantis face off. Shawn isn't doing to great against Mantis, and Mantis escapes. Just then, Juliet and Lassiter show up as back up. After a chase, Shawn "The Catch" Spencer takes down The Mantis once and for all. And with that, The Mantis is finally arrested, and the Camino Drug Syndicate case is finally laid to rest.