Heat Signature: [s2e26]

In the episode itself, Marceline convinces Finn and Jake that her ghost friends can turn them into vampires so they can survive a trip to a "ghost dimension" to watch the movie. However, it turns out to be a played by Marceline and her ghost friends, who lead the duo through a series of "vampire" tests that are actually just dangerous stunts.

The film's tagline is "Under the ocean, no one will hear your death" —a play on the famous Alien tagline. [S2E26] Heat Signature

Within the show's universe, Heat Signature is a pre-war film series that Finn and Jake consider a must-watch. Key details include: In the episode itself, Marceline convinces Finn and

It is described as a thriller/horror film set underwater. Within the show's universe, Heat Signature is a

It follows a submarine crew that detects a "heat signature" from an enemy, only to realize they cannot find their own signature, suggesting they might be ghosts or in a supernatural situation.

There are at least three films in the Heat Signature franchise mentioned in the episode. Episode Plot Context