"Emerald Hunt" is the first episode of season 1 of "Sonic The Hedgehog: The Animated Series" It is the 1st episode overall, and was released on April 25, 2020 in the U.S.
The episode starts with a storm off the course of Green Hill with the camera cutting towards Tails' Lab. Then, Tails tells Sonic that they have a slight problem. With a camera capturing all the chaos that the storm's done so far. Then Knuckles bursts through the door and tells Sonic and Tails that someone stole the Master Emerald. With Sonic saying sarcastically saying that he's shocked. With Tails saying that maybe we should assemble a team and look for it. Then the camera changes to the other main characters with Tails saying "seriously?" Then a lightning strike almost hits Knuckles, urging Tails to say "It's the best we got. LET'S MOVE!" After a while, Tails tells everyone to stay alert. With Tails using a megaphone and yelling in a sleeping Shadow's ears. Just then, something hits the side of the ship. Upon seeing what it was, Tails was surprised when he saw a rock that was blocking his path. Only for Knuckles to remind him that it's not a rock. It was the Master Emerald. Tails then says that maybe the storm blew it into the ocean. After returning to the surface, the heroes see that the whole city has been obstruct by the storm. The episode ends with Tails saying "Oh, boy..."
- Green Hill (cameo, unofficial debut)
- Central Square (debut)
- Underwater Zone (debut)
- Master Emerald (debut)
- Binoculars (debut)
- Green Hill doesn't make an official appearance.
- This is the first episode of the two-part episode, Treasure of Chaos.