The Mutation Situation - S2-E1
Trivia: At the very end of the episode, a squirrel drinks some mutigen and then suddenly looks back at the camera suddenly in a dramatic fashion. This is a reference to the" Dramatic Chipmunk" meme -the squirrel moves in the exact same way with similar music.
Trivia: When Barry and Oliver are fighting on the street, a police officer asks for backup and mentions Burton and Nolan street, as reference to Christopher Nolan and Tim Burton.
Trivia: This show pays many homages to the 1968 film Bullitt which was also set in San Francisco. Firstly officer Rebecca Madsen's car is the exact same make, colour, and model Mustang that Steve McQueen drove in Bullitt. Also the final episode (Tommy Madsen) features a car chase which recreates many shots from the 1968 film. It even includes the green Beetle Volkswagen coming down the hill as seen in the movie.
Trivia: Dio in this episode drinks Cronenberg Whisky, just like in the manga. The fictional brand is most likely a homage to the director David Cronenberg, especially given the bit of 'body horror' appearing in this arc.