What Lurks Below

What Lurks Below is the ninth episode from the spin-off SpongeBob Hero Series. It aired on December 11, 2010. The previous being The Big Breakout and the next is TBA.

Plot
After Plankton frees the Leader of U.L.T.R.A. E.V.I.L he turns the Chum Bucket to an underground submarine where they awaken something below the surface of Bikini Bottom.

Transcript

 * [scene starts with Plankton lying on the ground, sleeping]
 * Leader: Wake up, you lazy single-celled! I don't pay you to sleep on the job.
 * Plankton: Well, actually, leader sir...
 * Leader: Don't even say it. And keep your voice down.
 * REST COMING SOON