At school, Jack, Mackenzie, and Rusty are pretending to be astronauts on a mission to Mars. But Mackenzie keeps going missing and no one knows why, not even Mackenzie.
Tropes:
- A Day in the Limelight: This episode centers around Bluey and Bingo's friends Mackenzie, Jack, and Rusty. The episode is nearly bereft of any of the series' main characters, save Bluey very briefly appearing as one of the "aliens".
- Ambiguous Ending: After learning his lesson from Calypso and being saved by Jack and Rusty from aliens, Mackenzie resumes playing the titular game but is unsure of whether or not to tell Jack and Rusty about his anxiety issues, leaving it up to the audience to decide what happened next, thus leaving the episode on a cliffhanger.
- Artistic License – Space: Invoked: Early into the "spaceflight", something causes Mackenzie to fall over:Rusty: What was that?!Mackenzie: (gets up; "presses" buttons) We hit a meteor!Rusty: Oh no!
- Breaking the Fourth Wall: Happens twice in the episode.
- When Mackenzie pretends to fall over and incorrectly says that they hit a meteor, Jack tells the camera that they actually hit an asteroid.
- When Jack asks Rusty if they want to go to Mars without Mackenzie, Rusty stares at the camera, unsure of how to handle the situation.
- Comedic Work, Serious Scene: While the episode is about a fun and innocent game about space travel, Mackenzie tries to figure out why he's going missing and even experiences a flashback from his childhood.
- Hidden Depths: Jack is revealed to know a lot about space.
- Once More, with Clarity: Mackenzie remembers an early memory of how his mother left him at the slide, having allegedly disappeared. But as vision Calypso points out, she never left: she was always nearby (on the other side of the slide) and he simply got separated from her.
- Trauma Button: When playing with Jack and Rusty, the idea of a black hole in outer space triggers a traumatic memory from Mackenzie's childhood when he thought his mother abandoned him. The rest of the episode sees Mackenzie self-isolating and struggling to process what happened.
