The Grim Adventures of Billy and Mandy

Where to Watch The Grim Adventures of Billy and Mandy Season 1 Episode 20 Online Free - Big Trouble in Billy's Basement

Looking for where to watch The Grim Adventures of Billy and Mandy Season 1 Episode 20 ("Big Trouble in Billy's Basement") online? MyFlixer streams it free in HD. Press play above; if the first server is slow, switch to another one with a single click and the episode continues without a page reload.

The Grim Adventures of Billy and Mandy is a animation, comedy and kids series that first aired on August 24, 2001 on Cartoon Network. Greg Eagles, Richard Steven Horvitz, Grey DeLisle and Vanessa Marshall lead the cast of the show created by Maxwell Atoms. So far it spans 7 seasons and 184 episodes and its current status is "Ended". Season 1 has 23 episodes, and episode 20 originally aired on October 11, 2002. The show holds a 8.1/10 rating on TMDB.

What happens in "Big Trouble in Billy's Basement": After taking the Underworld's "Bad Book" from Grim, Billy becomes possessed by an evil entity. Then, Billy steals Grim's scythe, and uses it to open a portal to summon Yog-Sothoth. In consequence, Mandy calls for Hoss Delgado to battle Billy. It is revealed that the portal can only be sealed by throwing the book into it. As Billy eats the book, Mandy throws Billy himself into the portal, restoring everything to normal. Instants later, a portal opens up and Billy comes out and says they didn't want him there.

Use the Season and Episode selectors next to the server buttons to move to any other episode of The Grim Adventures of Billy and Mandy without reloading the page. The complete Season 1 episode list is below, and viewers who follow The Grim Adventures of Billy and Mandy on MyFlixer also stream Rugrats, Pink Panther and Pals and The Weekenders.

The Grim Adventures of Billy and Mandy Season 1 FAQ

Is The Grim Adventures of Billy and Mandy Season 1 Episode 20 free to watch on MyFlixer?

Yes. Every episode of The Grim Adventures of Billy and Mandy, including Season 1 Episode 20, streams free in HD on MyFlixer (MyFlixerz) with no registration.

How many episodes are in Season 1 of The Grim Adventures of Billy and Mandy?

Season 1 of The Grim Adventures of Billy and Mandy has 23 episodes, and all of them are listed on this page with direct watch links.

When did The Grim Adventures of Billy and Mandy Season 1 Episode 20 air?

Episode 20 of Season 1 ("Big Trouble in Billy's Basement") first aired on October 11, 2002.

Can I watch The Grim Adventures of Billy and Mandy on my phone or TV?

Yes. The MyFlixer player works in any modern browser on Android, iPhone, iPad, laptops, desktops and smart TVs, with no app to install.