Parallax
Season 1, Episode 8: The Battle of Mundi's World
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Ben is sick as a result of the Krellick scratch. His friends travel to Forest World to get the antidote but wind up in a huge battle against the Krellicks. They are losing when Veronica arrives to save the day - and ask pointedly just how many kids are using the supposedly 'secret' portals.
All Episodes - Season 1
Episode 1
One Big Happy Family
Episode 2
A Rare Find
Episode 3
The Artful Dodger
Episode 4
Achey, Breaky Heart
Episode 5
Lost In Paradise
Episode 6
One Man's Rubbish
Episode 7
Artes Veritas
Episode 8
The Battle of Mundi's World
Episode 9
The Big Sleep-Over
Episode 10
The Martin Crimes
Episode 11
The World According to Betti
Episode 12
The Curse of The Incredibly Bad News
Episode 13
Decoy
Episode 14
Too Many Chiefs
Episode 15
Ex-Ben
Episode 16
Dad Meets Dad
Episode 17
The Krellick War
Episode 18
The Reluctant Guardian
Episode 19
Seek And You Shall Find
Episode 20
Sand Witch
Episode 21
My Favourite Martin
Episode 22
Cheats Never Prosper
Episode 23
Martinmania
Episode 24
The Reading Room
Episode 25
Clownin' Around
Episode 26
It Ain't Over