Cast and copyright

One family over the whole multi-verse is picked to connect the whole of the multi-verse. How they do that travel into Tv shows because every show is really just an other earth. That family the Roads. When Caitlin Roads' friends get drunk and persuade her to take them to an other earth they get stuck. How? well long story short
Drunk= forgetting
Forgetting= not understanding that you are from another earth
Not understanding that = not being able to get home.
How will Caitlin get her an her friends home.