The TVTropes Trope Finder is where you can come to ask questions like "Do we have this one?" and "What's the trope about...?" Trying to rediscover a long lost show or other medium but need a little help? Head to Media Finder and try your luck there. Want to propose a new trope? You should be over at You Know, That Thing Where.
Some possibilities:
Shared Universe: Two works take place in the same Verse.
Spinoff: Of the "shared continuity" flavor, which carries over no characters from the original show but allows for the possibility of Crossovers if anyone from Prime wants to visit. It's just very typical for this type of spinoff to focus on someone new, whether they're halfway across the world or just a couple miles away from other characters. The story is about the new protagonist(s).
Superman Stays Out of Gotham: If one of the Rescue Bots characters suggests calling for help from Prime allies, but is turned down because "They're too far away" or "They have their own problems".
Edited by KD
A story spinning off of the main one takes place in an isolated setting or is set far away from the main story's setting so that they can't interact with each other in order to keep their stories independent.
Like how Transformers: Rescue Bots takes place in the same universe as Transformers: Prime, but it takes place on a little-known island on the opposite side of the country so that neither of their plots influence the other.