- In Hawaii Five-0 season 3 episode 18, McGarrett and the team investigates the nebulous death of a teacher who was once a part of a Roller Derby competition. On the episode, we meet the team's coach, a newcomer for the team and the victim's confidant.
- When the victim's confidant finds herself in a case of mistaken identity, the team must rush to the scene to rescue her.
- Meanwhile, Doris got an ominous visit from a mysterious intruder.
Source: Spoilers Guide - Hawaii Five-0