Ben 10: Bio Squad/Season 1

Season 1
Season 1, where Ben, Gwen, and Kevin, find the fourth hero they have been looking for, solve the riddle of the Swords and defeat their mysterious foes that lurk in the Dark Dimension.

When There's a Will There's a Way

Ben gets asked by Azmuth to go to the planet Octaviar to find the Shadow Sword, but on his journey he meets a new hero.

Voyage Into the Dark Dimension

Ben and Evan go into the Dark Dimension to stop Nega Ben and Nega Evan from breaking free and conquering the Reality Dimension.

...Or the Highway

Azmuth sends Ben back to the Plumber's Academy, only to find out that Evan will be his teacher.

Clovers and Horseshoes

Ben and Evan discover an extremely lucky alien that reminds Gwen of her days as Lucky Girl.

The Negatrix

Nega Azmuth finally finishes his greatest creation ever, the Negatrix.

Wolf in the Shadows

Vilgax and Pysphon reunite and come up with a plan to destroy Ben without even lifting a finger.

Ben and the Lord

When Ben is too sick to stop Vulkanus, he gives his Biotrix to Lord Gemini, but when Gemini doesn't return, he sends Kevin and Evan to investigate.

Negative Allies

<p style="text-align: center;">Ben discovers that Nega Vilgax, Nega Aggregor, Nega Vulkanus, and Nega Diagon are good-guys.

<p style="text-align: center;">The Fire Assassin

<p style="text-align: center;">The Black Assassin returns to hunt Ben, and to do so, he uses the Fire Sword.

<p style="text-align: center;">Stone Walls

<p style="text-align: center;">Ben discovers the connection between the Swords of Power and the Dark Dimension

<p style="text-align: center;">Sticks and Stones... and Swords

<p style="text-align: center;">While on a mission to capture Trombipular, Ben crash lands on an unknown planet and finds the Ice Sword.

<p style="text-align: center;">The Power of Numbers

<p style="text-align: center;">Sixsix, Sevenseven, and Eighteight team up to eliminate Ben once and for all.

<p style="text-align: center;">The Flame: Extinguished

<p style="text-align: center;">The Flame Keeper's Circle, every single member, goes missing.

<p style="text-align: center;">Stalker Nation

<p style="text-align: center;">Will Harangue rebuilds the Stalker and tries to kill Ben with it.

<p style="text-align: center;">One Knight, a King, and a Queen

<p style="text-align: center;">The Forever Knights return and bring the FKC back with them.

<p style="text-align: center;">Nanochip Destruction

<p style="text-align: center;">The Nanochips return and disquise themselves as Evan and Kevin, but when Gwen realizes that they are fake, they replace her, too.

<p style="text-align: center;">Ions

<p style="text-align: center;">Ben discovers the location of the Ion Sword, but has trouble actually collecting it.

<p style="text-align: center;">The Gauntlet

<p style="text-align: center;">Ben uses the swords of power to find the Gauntlet.

<p style="text-align: center;">The Negative Swords

<p style="text-align: center;">Nega Ben finds all four Nega Swords anmd the Nega Gauntlet

<p style="text-align: center;">Keys to the Universe Part 1

<p style="text-align: center;">Ben and Nega Ben battle it out with their Biotrices and Gauntlets.

<p style="text-align: center;">Keys to the Universe Part 2

<p style="text-align: center;">Nega Ben makes his way to the universal shrine, but doesn't realize that he doesn't have the seven keys.