"The Return to Angel Island" Part 4 of 4: The thrilling conclusion to this turbulent tale could spell the final conclusion for our heroes! Will the combined might of Sonic, Knuckles and the Chaotix be enough to end the tyranny of Dr. Robotnik and keep their lives from hanging in the balance? "Scenario": the latest installment of the popular "Mobius 25 Years Later" series-within-a-series. King Sonic and The Guardian Knuckles must work with Rotor and Cobar to create a plan of action to correct the time anomaly that threatens the future as they know it! Can they possibly stop what was set in motion years ago?!