The Grim Adventures of Billy and Mandy: Season 3
Season 3 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Picks up essential narrative continuity directly following the events of The Grim Adventures of Billy and Mandy Season 2.
- Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
- Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
- Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
Episode Guide
Season 3 Progress Shield
Spider's Little Daddy
Jun 11, 2004
Billy learns about the joys of fatherhood from his eight legged son, Jeff.
Tricycle of Terror
Jun 11, 2004
A kid in a supernatural Porta Pottie gives Billy a new tricycle that loves him too much.
Dumb Luck
Jun 18, 2004
Billy does something stupid and ends up in a streak of bad luck thanks to an unwelcome guest.
No Body Loves Grim
Jun 18, 2004
Grim’s body and head get separated. His body lives it up while his head ends up down and out.
Lil' Porkchop
Jun 25, 2004
Billy’s pet fish has big problems that bring out Grim’s soft side. Meanwhile, Billy’s Dad bonds with his absent son.
Skarred for Life
Jun 25, 2004
General Skarr gets way more than he bargained for when he moves into Billy and Mandy’s neighborhood in search of a simple life.
House of Pain
Jul 2, 2004
Lord Pain comes from the Plane of Eternal Suffering to serve Grim, who turns out not to be worthy.
A Grim Prophecy
Jul 2, 2004
As a young reaper Grim learns his fate from his first customer.
Mandy Bites Dog
Jul 2, 2004
Mindy mocks Mandy’s lame dog so Mandy adopts Grim’s scary hound and then Mindy’s sorry she opened her big fat mouth.
Nursery Crimes
Jul 9, 2004
Billy can’t sleep and demands fairy tales from Mandy and Grim. Grim’s supernatural stories go awry when Billy befriends Pinocchio.
My Peeps
Jul 9, 2004
Sitting too close to the TV costs Billy his sight and his fear of the eye doctor sends him to Grim for a cure that has him seeing the future.
Nigel Planter and the Chamber Pot of Secrets
Jul 16, 2004 · 30 min
Grim, Billy, and Mandy return to Toadblatt’s School of Sorcery to rescue Nigel Planter from evil Lord Moldybutt.
Circus of Fear
Jul 16, 2004
Grim, Billy, and Mandy return to Toadblatt’s School of Sorcery to rescue Nigel Planter from evil Lord Moldybutt.
Bully Boogie
Jul 23, 2004
Grim’s old nemesis, the Boogie Man, attempts to take over Grim’s job, reigniting an old rivalry that culminates in a showdown for supremacy.
Here Thar Be Dwarves!
Jul 23, 2004
Billy goes on a picnic and ends up resolving an old dispute between the Dwarves and the Elves over control of the cookie and mushroom businesses.
Which Came First?
Jul 30, 2004
A school field trip leads to the discovery of a failed Cold War government experiment with superchickens. Grim and Mandy must rescue Billy from becoming chicken feed.
Substitute Teacher
Jul 30, 2004
Nergal Jr. starts school with Billy and Mandy and falls prey to Sperg’s bullying. When the teacher won’t protect him, Nergal Jr. steps up and teaches Sperg a lesson in respect.
Super Zero
Aug 1, 2004
Billy becomes a super hero in a galaxy far far away while Grim and Billy’s Dad build a shed and a bridge to each other’s hearts.
Sickly Sweet
Aug 1, 2004
Billy and Grim use the Mask of the Beast to teach Mandy how to be sweet and loving, with disastrous consequences.
Bearded Billy
Aug 8, 2004
Billy discovers that too much of a good thing can have scary side effects when he takes Grim’s special hair tonic.
The Nerve
Aug 8, 2004
Billy steals Mandy’s nerve to confront Sperg and Mandy learns that inner strength comes from within.
Test of Time
Oct 15, 2004
Billy and Mandy research their history reports first hand, changing the course of history forever.
A Kick in the Asgard
Oct 15, 2004
An inadvertant interdimensional exchange program takes Billy to Valhalla while Grim and Mandy meet someone even more obnoxious than he is.
Five O'Clock Shadows
Oct 22, 2004
Billy and Mandy spend twelve hours in the Shadow World getting to know themselves.
Attack of the Clowns
Oct 29, 2004 · 30 min
Grim and Mandy plan an intervention to break Billy of his fear of clowns, but they don’t know how justified that fear is.
Complete and Utter Chaos
Oct 29, 2004
Eris has vowed to give up chaos leading Grim, Billy, and Mandy into temptation.
Whatever Happened to Billy Whatishisname?
Nov 5, 2004
Billy displeases Mandy so she replaces him with Bobby, a kid with his own issues.
Just the Two of Pus
Nov 5, 2004
Sperg’s face breaks out and the only cure is the touch of Grim’s arm and getting to Grim means being nice to Billy.
Chocolate Sailor
Nov 12, 2004 · 22 min
Billy gets a job selling chocolate sailors and becomes his own best customer.
The Good, the Bad and the Toothless
Nov 12, 2004
Billy loses a tooth and meets the tooth fairy who’s not all he’s cracked up to be.
Toys Will Be Toys
Nov 26, 2004
Grim brings the Dinobonoids to life so Billy can say his final goodbye but the toys aren’t ready to be outgrown.