1st Case

1st Case is the second episode of Ben 10: Alien Helpline.

Plot
Vulkanus attacks and it's time for the heroes to jot up in Japan.

Protagonists

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin
 * OV
 * Julie

Antagonists

 * Vulkanus
 * Pickaxe Aliens

Aliens

 * NRG
 * Humongosaur
 * Ultimate Humungosaur
 * Stinkfly