Lunchtime in the Lab

This episode is a prediction! The episode will actually air, but not between these episodes.

Plot
The Locked Room Gang takes vacation, but before they leave they are interrupted by 3 Government Agents saying "they need to be 'escorted' to an 'island'". They refuse, getting knocked out and waking up on said "island". They wake up in front of the lab. Going inside the lab, Kirby (Or any other character... I'm using him as an example) finds a tape recorder, and plays it. The message said "Greetings Locked Room Gang, Dr. S here with an important message... Your all gonna die... and I'm gonna take over the world... That's pretty much the summary of the message... Bye!"

Who is this Dr. S guy, why is he here, why is he gonna kill the Locked Room Gang? Only one way to find out.