The Thundermans travel to Hawaii for summer vacation, but there is trouble in paradise as Phoebe inadvertently has absorbed Dark Mayhem's evil powers, and now is determined to complete his plan for world domination.
- Kira Kosarin as Phoebe Thunderman
- Jack Griffo as Max Thunderman
- Addison Riecke as Nora Thunderman
- Diego Velazquez as Billy Thunderman
- Chris Tallman as Hank Thunderman
- Rosa Blasi as Barb Thunderman
- Maya Le Clark as Chloe Thunderman
- Dana Snyder as Dr. Colosso (voice)
- This one hour special will continue the events that started in the previous episode, "Come What Mayhem." This makes the full evil Phoebe arc to be a full feature-length movie of 90 minutes.
- Filming for this special started on March 28, 2017 and was completed on April 8, 2017.
- Jack Griffo and Kira Kosarin have teased about the movie through Instagram and Twitter.
- Some parts of the movie were filmed in Paradise Cove Beach Cafe, Malibu, CA and Huntington Beach, CA while others were filmed at the set.
- The movie is confirmed to be one-hour.
- This will be the first Nickelodeon feature-length movie from a TV show since iCarly's iGo To Japan and Big Time Rush's Big Time Movie
- Kira and Jack learnt how to ride an ATV vehicle for this special.
- The synopsis and premiere date were revealed in the May 2017 issue of the J-14 magazine.
- Dark Mayhem or at least his voice are likely to be featured in this episode.
- This is going to be their second time the Thunderman Family go to a beach.
- The first time was in Up, Up, and Vacay (alternate ending)