"You were never supposed to have partners. There was never supposed to be a John Diggle. A Felicity Smoak. A Team Arrow. There never was supposed to be a Green Arrow! There was only the mission!"
—A hallucination of The Hood to Oliver Queen
"Fundamentals" is the eighteenth episode of the sixth season of Arrow, and the one-hundred-thirty-third episode overall. It aired on April 12, 2018.


In his darkest place yet, Oliver wonders if he has failed at everything – being a father, a mayor and a hero. His frustration rising, Oliver lashes out at Felicity and William. A surprising visit from an old friend has Oliver questioning his next move.[src]


Main Cast

Special Guest Star

Guest Starring






  • "Back to the Basics" was the original title for this episode.[1]
    • Near the end of the episode, Oliver says that he needs to go "back to the basics," likely indicating the title change was a post-shooting decision.
  • This is the first episode to contain Oliver's suits as both the Hood and Green Arrow.
  • Felicity mentions that she "Parent Trapped" John and Oliver, referencing a scene from 1961 film The Parent Trap in which the protagonists trick their separated parents into seeing each other.


  • When Oliver yells at William and accidentally smashes his science fair project, it can be seen on the table, perfectly intact, moments later when Felicity tells Oliver to leave.


  1. Arrow - Episodes 6.17 & 6.18 - Titles Revealed - SpoilerTV

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