List of Sonic The Hedgehog episodes

Chaos God of Destruction Saga
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 * 74
 * 1
 * 4 years pass
 * 4 years have passed and Sonic and his friends begin a new adventure.
 * 75
 * 2
 * The Legend of Chaos
 * Dr. Eggman shatters the Master Emerald unleashing a strange creature. Meanwhile Sonic visits Station Square and encounters the creature.
 * 76
 * 3
 * Mystic Ruins
 * Sonic and Tails head to his workshop in Mystic Ruins when they're ambushed by Dr. Eggman. He feeds his creature Chaos a Chaos Emerald and plans to feed him all 7. Knuckles begins his search for the Master Emerald pieces.
 * 77
 * 4
 * Blast from the Past
 * The Freedom Fighters begin their search for the remaining Chaos Emeralds. Sonic and Tails find one at Casinopolis until Eggman ambushes him. While searching for the Master Emerald, Knuckles is taken back into the past. Upon returning back to the present, he spots Dr.Eggman with a glowing object in his hand.
 * 78
 * 4
 * Blast from the Past
 * The Freedom Fighters begin their search for the remaining Chaos Emeralds. Sonic and Tails find one at Casinopolis until Eggman ambushes him. While searching for the Master Emerald, Knuckles is taken back into the past. Upon returning back to the present, he spots Dr.Eggman with a glowing object in his hand.
 * 78
 * 78

5

 * Windy Valley
 * Knuckles confronts Eggman who happened to have a Chaos Emerald and feeds it to Chaos transforming into Chaos 2. After facing him Dr.Eggman tells Knuckles that Sonic and his friends are after the Chaos Emeralds. Sonic and Tails are awoken by Sally in the street and head for Windy Valley to obtain the next Chaos Emerald.
 * 79
 * 6
 * Chaos Transformed
 * Knuckles spots Sonic with a green emerald and is convinced that he stole a piece of the Master Emerald. After a brief scuffle, Eggman retrieves both emeralds and feeds Chaos once again transforming into Chaos 4. Sonic and Knuckles team up to defeat Chaos.
 * 80
 * 7
 * A Major Setback
 * Dr. Eggman retreats back to his Egg Carrier which Sonic and Tails follow in pursuit. However Eggman shoots a powerful laser beam which destroys The Tornado 2. Meanwhile a random bird befriends Amy while they escape from a robot known as Zero.
 * 81
 * 8
 * Twinkle Park, Land of Couples
 * Amy finds Sonic and declares that he protects her and the bird she found from the robot Zero. Things get worse when Amy runs off into the Amusement Park Twinkle Park with Sonic and Zero in her pursuit. Meanwhile Tails awakens back in the Mystic Ruins and begins reconstructing his Tornado - 2
 * 82
 * 9
 * Gamma on the Loose
 * Dr.Eggman sends his new E-series robots to obtain a frog who has aten a chaos emerald. Sonic searches for Amy all over the city and spots that Zero kidnaped her.
 * 83
 * 10
 * On Board the Egg Carrier
 * Gamma finds froggy and takes him onboard the Egg Carrier. Big the cat follows along with Knuckles who senses his final pieces of the Master Emerald on board. Sonic races to Red Mountain in order to get on the Egg Carrier, only for Tails and Sally to arrive and chase after the Egg Carrier with the upgraded Tornado-2.
 * 84
 * 11
 * Trouble Strikes
 * Upon reaching the Egg Carrier Sonic, Tails, and Sally begin a full on assault on the Sky Deck. Gamma frees Amy and she attempts to escape. Sonic and Gamma face each other.
 * 85
 * 12
 * Tails the Hero
 * The Egg Carrier begins to lose altitude. With no time to spare, Sonic pursues Eggman while Tails, Sally and Amy head back to Station Square. Eggman plants a bomb and Tails is the only one who can defuse it.
 * 86
 * 13
 * A meaningful Reunion
 * Amy decides to return back to the Egg Carrier accompanied by Bunnie to return her bird to his family. Sonic faces Eggman in his hidden base. Gamma decides to rebel against the Eggman Empire and free all of his E-Series companions.
 * 87
 * 14
 * Chaos Returns?
 * Chaos is back and decides to steal the emeralds for his own personal gain. Sonic and his friends must find the last emerald before Chaos finds it.
 * 88
 * 15
 * FlashFlood, The Climatic Battle Begins
 * Sonic witnesses Perfect Chaos nearly destroy Station Square. However a girl from the past named Tikal states that Chaos must be sealed back into the Master Emerald.
 * 89
 * 16
 * SuperSonic vs Perfect Chaos
 * With the power of the positive energy of the chaos emeralds, Sonic transforms into Super Sonic with the plan of neutralizing Chaos. He succeeds and and Chaos is no longer filled with rage returning back to the Master Emerald.
 * 90
 * 17
 * A Hidden Discovery
 * The people of Station Square begin reconstructing their city. Months later Eggman discovers his Grandfathers secret diary.
 * }
 * Sonic witnesses Perfect Chaos nearly destroy Station Square. However a girl from the past named Tikal states that Chaos must be sealed back into the Master Emerald.
 * 89
 * 16
 * SuperSonic vs Perfect Chaos
 * With the power of the positive energy of the chaos emeralds, Sonic transforms into Super Sonic with the plan of neutralizing Chaos. He succeeds and and Chaos is no longer filled with rage returning back to the Master Emerald.
 * 90
 * 17
 * A Hidden Discovery
 * The people of Station Square begin reconstructing their city. Months later Eggman discovers his Grandfathers secret diary.
 * }
 * The people of Station Square begin reconstructing their city. Months later Eggman discovers his Grandfathers secret diary.
 * }

Artika Egg Army Arc
Eggman Empire Fortress Arc

SEASON 19 (2018 - 2019)
Post Forces Saga