Welcome back to Trinyvale! After saving the world from a deadly fate, the Triplets relax in their newly-acquired private castle, but can barely make it through the Friends theme song before they're interrupted by a close acquaintance bearing dire news! Jens pops a question, Onyx becomes a grandmother and Nyack gets bugged (again) as the Trinyvale Trio fight to preserve the future they worked so hard to build!