Sonic Underground

Sonic and his siblings travel to the outskirts of Mobius to recruit a tribe of nomads for the Resistance.

Sonic, Manic and Sonia invade Robotnik's lair to retrieve the Hedgehog crest.

The Hedgehogs latest quest to find their mother takes them to the prison tower where they encounter a masked stranger who insists he is family.

The Oracle advises the Hedgehogs to undertake a mission which could reveal answers about their future.

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.

The history of the Underground is told in detail, from the fall of Mobotropolis to the rise of Robotnik.

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.

Queen Aleena advises the Hedgehogs to travel to a valley of Mobius so that they can bring about peace between two contingents of the resistance that have split.

Robotnik is using the local hairdresser, Doo-bot, to get information on the citizens that are against him.

A self proclaimed scientist has come to Robotropolis with a device that will reverse the effects of Robotnik's robotisizer.

Robotnik has arranged a museum exhibit of the Royal family goblets.

The Hedgehogs vacation is interrupted by the news of Robotnik's latest weapon.

On a mission in a distant sector of Robotropolis, the Hedgehogs are informed that freedom fighters have disappeared and are going to be robotisized.

Robotnik captures Bartleby and uses him as bait to capture Sonia.

Robotnik's new weapon, Art, is the enforcer of Robotropolis new eradication policy.

The newly discovered Emerald Peninsula is a perfect place for Robotnik to add slaves to his empire.

Sonic and Manic play a game of virtual reality to enhance their pilot skills.