What is supposed to be a vacation for Sonic, Manic and Sonia turns into a battle to save Mobius when Robotnik attacks with his newest weapon - the Flying Fortress.
Full Episodes
Sleet and Dingo escape the Flying Fortress with the Chaos Emerald.
The Hedgehogs begin to learn the important lessons of what it takes to be a freedom fighter.
Knuckles reluctantly makes a deal with Robotnik to turn over Sonic and his family in exchange for finding the Chaos Emerald that will save Mobius.
Manic, Sonic and Sonia must end their training early when Robotnik threatens the Oracle and takes a member of the resistance hostage.
The history of the Underground is told in detail, from the fall of Mobotropolis to the rise of Robotnik.
Argus, a captain of the Queen's guard, is captured by Sleet and Dingo before he can reach the secret rendezvous where he was to meet Queen Aleena.
Sonic, Sonia and Manic return to their birthplace, Mobodoon, a beautiful, festive town.
Sonia travels to east Mobius to visit her friend Mindy at the LaTour estate.
Sleet and Dingo plan to collect the taxes owed to Robotnik from the Duke of Velcronia but keep it for themselves.
The sinister Robotnik blackmails Cyrus, an old friend of Sonic's, by holding his father hostage.
On a trip to Port Mobius, Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast.