Flash vs. Arrow

"Okay. We'll help you catch your bad guy. Great, "Metahuman"! I'm not calling him that, Barry. Partners? Partners."

- Oliver Queen and Barry Allen

Synopsis
Barry is thrilled when Oliver, Felicity and Diggle come to Central City to investigate a case involving a deadly boomerang. Excited about teaming up with his friend, Barry asks Oliver if he'd like to help him stop Roy Bivolo, the meta-human Barry is currently tracking. Bivolo causes people to lose control of their emotions and has been using that skill to rob banks. Unfortunately, the superhero partnership doesn't go as smoothly as Barry expected. When Oliver tells Barry he still has a lot to learn, Barry sets out to prove him wrong by attempting to stop Bivolo alone. However, when Bivolo infects Barry and sets him on a rage rampage, everyone is in danger, and the only one who can stop him is the Arrow. Meanwhile, Iris is furious when Eddie tries to get a task force to stop The Flash. Joe and Dr. Wells agree The Arrow is a bad influence on Barry and Caitlin and Cisco deal with a new team in STAR Labs.

Main Characters

 * The Flash's Team
 * The Flash/Ralph (Barry Allen)
 * Cisco Ramon
 * Caitlin Snow
 * Joe West
 * Harrison Wells (Eobard Thawne)
 * Iris West
 * Eddie Thawne
 * David Singh
 * Team Arrow
 * The Arrow (Oliver Queen)
 * Felicity Smoak
 * John Diggle
 * Firestorm
 * Ronald Raymond
 * Martin Stein

Villains

 * Prism/Rainbow Raider (Roy G. Bivolo)
 * Harrison Wells (Eobard Thawne)
 * Digger Harkness
 * Captain Cold (Leonard Snart)
 * Deathstroke
 * Huntress

Other Characters

 * Rob
 * Santa Claus
 * Certo
 * John Diggle's Cousin
 * Rocky
 * Widgick
 * Henry Allen
 * The Canary
 * Robert Queen
 * Samantha Clayton
 * Moira Queen
 * William Clayton

Teams and Organizations

 * Central City Homeless Shelter
 * Palmer Technologies
 * CC Jitters
 * Gold City Bank
 * The Flash's Team
 * STAR Labs
 * CCPD
 * Task Force
 * Saved by The Flash
 * U Pay We Store
 * Team Arrow
 * Big Belly Burger
 * Mirakuru Army
 * MIT
 * Iron Heights Prison

Species

 * Metahumans
 * Humans
 * Kangaroo
 * Hawks

Objects

 * The Flash Suit
 * Sunglasses
 * Wheelchair
 * Bow and Arrow
 * Oliver Queen's Bow and Quiver
 * The Arrow Suit
 * Motorcycle
 * Boomerang
 * Team Arrow SUV
 * Mirakuru
 * Cold Gun
 * Strobe Light Machine
 * Firestorm Matrix
 * STAR Labs Mobile Research Unit

Locations

 * Earth-1
 * Earth
 * United States of America
 * Missouri
 * Central City
 * Central City Plaza
 * Central City Homeless Shelter
 * CC Jitters
 * Gold City Bank
 * STAR Labs
 * Pipeline
 * Eddie Thawne's Apartment
 * Central City Police Precinct
 * U Pay We Store
 * Big Belly Burger
 * Team Arrow Central City Hideout
 * 168 Jarvis Residence
 * Starling City
 * MIT
 * Iron Heights Prison
 * Australia
 * China
 * Lian Yu

Trivia

 * This is the first crossover episode in the Arrowverse.