Rick modifies a walkie-talkie to send messages through time, leading to chaotic interactions with historical figures and past versions of themselves. Morty accidentally starts a timeline paradox while trying to help.
• Rick’s scientific explanation of time-travel communication, interrupted by Morty’s confusion.
• Morty sending a walkie-talkie message to a younger Rick with unintended consequences.
• A resolution that involves clever use of time loops and walkie-talkie strategy.