Scooby-Doo Origin Story 'Scoob!' Gets Final Trailer

There’s a brand new trailer for the upcoming Scoob!

The new movie is the latest in the Scooby-Doo universe, and gives a little backstory on the gang.

Scoob! reveals how lifelong friends Scooby and Shaggy first met and how they joined with young detectives Fred, Velma and Daphne to form the famous Mystery Inc.

Now, with hundreds of cases solved and adventures shared, Scooby and the gang face their biggest, most challenging mystery ever: a plot to unleash the ghost dog Cerberus upon the world.

As they race to stop this global “dogpocalypse,” the gang discovers that Scooby has a secret legacy and an epic destiny greater than anyone imagined.

Scoob!, which hits theaters on May 15th, stars the voices of Frank Welker as Scooby-Doo, Will Forte as Shaggy, Zac Efron as Fred, Gina Rodriguez as Velma, Amanda Seyfried as Daphne, Kiersey Clemons as Dee Dee, Jason Isaacs as Dick Dastardly, Ken Jeong as Dynomutt, Tracy Morgan as Captain Caveman, and Mark Wahlberg as Blue Falcon. It also features the voices of Ariana Greenblatt as Young Velma, Iain Armitage as Young Shaggy, Pierce Gagnon as Young Fred, and McKenna Grace as Young Daphne.