Ben 10 Wiki
34497a3fe0ef52949a1ba8e99894ed69.png This article belongs to the Classic Continuity
Rebootomnitrixsymbol.png Click here to see the Reboot Continuity version of this article

Ultimate Alien is always taking place "now". Alien Force is always taking place just before Ultimate Alien. Ben 10 Classic was always taking place "now", until Alien Force aired, at which point it took place about 5 years ago.

Dwayne McDuffie's concept of "now" during Ultimate Alien's run, implying the use of a floating timeline.[DM 1] Due to the nature of a floating timeline, the contents and the dates are subject to revision.

The Main Timeline (also known as the Prime Timeline)[1] is where all of the canon episodes of Ben 10, Ben 10: Alien Force, Ben 10: Ultimate Alien, and Ben 10: Omniverse take place.

This is the timeline where nearly the entire Classic Continuity takes place. Ben 10: Race Against Time didn't directly happen in this timeline, and Gwen 10 and Goodbye and Good Riddance are "what if" episodes.


The Beginning
  • Maltruant arrives on the Contumelia ship with his own Annihilargh, followed by Ben Tennyson and Rook Blonko.
    • Ben uses the power of all his alien transformations to hold the big bang, and defeat Maltruant.
  • The Universe had been created by the Contumelia and the Slimebiotes started their lifelong mission of seeding life across the growing universe.
  • The Timeline at the beginning started to branch into many timelines and shift creating its own Timestream.
  • Realities began to diverge.
Prior to 231AD
  • Millions of years prior to Omniverse
  • Before 231AD
    • Azmuth is born.
    • Zennith is born.
    • Azmuth creates Primus and later begins creation on Ascalon.
    • Zennith leaves Azmuth, he doesn't know until he found her gone when he finishes creating Ascalon.
18th Century
20th Century
20th and 21st Century
21st Century
  • The 2000s
    • Kevin destroys his house due to his insanity and then runs away thinking his punishment was being kicked out on the street.
    • Mrs. Levin divorces Harvey.
During Ben 10
  • Six years ago
    • Summer
      • The events of Ben 10 take place.
  • Vilgax fights off Xylene's Ship for the Omnitrix.
    • Vilgax's body is fatally damaged in battle.
      • The ship is destroyed and the Omnitrix falls to Earth.
    • Max, Ben, and Gwen begin their road trip around the country, starting with a campout.
      • Ben wanders off into the forest and the Omnitrix lands near him. As Ben reaches for it, it jumps on his wrist.
    • Vilgax sends drones for the watch, but they are easily destroyed by Ben.
  • Vilgax's body is finally repaired, gaining new enhancements.
    • Vilgax goes to Earth to retrieve the Omnitrix himself.
  • One week before The Big Tick
  • Azmuth begins working on the new Omnitrix.
  • After Ben 10: Secret of the Omnitrix
  • The events of Ben 10: Destroy All Aliens take place.
During Omniverse Flashbacks
During Alien Force
Ultimate Alien Omniverse
During Omniverse
  • The events of Ben 10: Omniverse take place.

Notable Visitors



  1. In the Original Series, it was stated that the Plumbers started fighting alien threats in the early 1800's following Eon's arrival to Earth. This is slightly retconned in Ultimate Alien, as the events of Ben 10: Race Against Time are stated to take place in an alternate timeline.[3]


Dwayne McDuffie

Derrick J. Wyatt

Matt Wayne