Grossology
Season 1, Episode 19: Vein Drain
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When people start showing up with bite marks on their necks, Ty and Abby suspect vampires. But when they dig a little deeper, they discover that it's another kind of bloodsucker that's causing trouble – leeches! Worse, Abby is deathly afraid of these hungry invertebrates.
All Episodes - Season 1
Episode 1
Queen for a Day
Episode 2
The Slim Slime Man
Episode 3
Fartzilla
Episode 4
The Perfect Stink
Episode 5
The Scab Fairy
Episode 6
When Ya Gotta Go
Episode 7
Club Parasites
Episode 8
Go Fish
Episode 9
It's Gotta Be the Shoes
Episode 10
Owl Most Foul
Episode 11
Yack Attack
Episode 12
The Greatest Race Ever Crawled
Episode 13
Kid Rot
Episode 14
The Insider
Episode 15
All Together Now
Episode 16
Oldie but a Goodie
Episode 17
Survival of the Grossest
Episode 18
School's Grossed Out for Summer
Episode 19
Vein Drain
Episode 20
Silent But Deadly, Part 1
Episode 21
Silent But Deadly, Part 2
Episode 22
The King of Rottingham Forest
Episode 23
Lights Out
Episode 24
Frankenbooger
Episode 25
A New Leaf
Episode 26
Heave It or Leave It