[7] During a battle with Doctor Eggman, Sonic the Hedgehog shatters the Paradox Prism, a crystalline artifact with reality-bending powers.

This drastically warps reality and creates the "Shatterverse", a new section of the multiverse with five alternate dimensions called "Shatterspaces", each of them formed by one of the Prism shards and inhabited by alternative versions of Sonic's friends (Miles "Tails" Prower, Knuckles the Echidna, Amy Rose, Rouge the Bat and Big the Cat), but lacking their own versions of him.

Sonic first arrives in New Yoke City, a futuristic dystopian version of Green Hill ruled by a quintet of Eggman variants who call themselves the Chaos Council and used the power of its shard to conquer it.

After learning of the Prism's existence, they seek to conquer the Shatterverse by obtaining all five shards, but are opposed by Sonic and a resistance formed from the city's inhabitants.

While attempting to reassemble the Prism and restore his reality, which became the dull and lifeless Ghost Hill following the Prism's shattering, Sonic ventures to other Shatterspaces to retrieve the shards before the council can, including the Boscage Maze, a jungle world with feral versions of his friends; the No Place, a flooded world with pirates; and the Grim, a barren wasteland.

Later, Sonic's rival Shadow the Hedgehog, who managed to avoid Green Hill's destruction by using Chaos Control, reluctantly agrees to help him.

Once the Chaos Council's plans for domination begin to endanger the Shatterverse, the natives of each world join the war against them and work with their counterparts.

Ultimately, after a climatic battle, Sonic and Nine make amends after the latter realizes the consequences of his actions, Rusty sides with the resistance after bonding with the other Amy variants: Thorn Rose and Black Rose, Dread lets go of his obsession and appoints Black as the new captain of the crew, and the Chaos Council are banished to the void for their misdeeds.

Sonic then decides to use his energy to restore Green Hill and stabilize the Shatterspaces, allowing them and their inhabitants to continue existing, although doing so nearly kills him.

While fighting his arch-nemesis, Dr. Eggman, Sonic the Hedgehog destroys the Paradox Prism, an ancient artifact with immense power.

While traveling through his new surroundings, Sonic discovers he has absorbed the Paradox Prism's energy, but his equipment is unable to handle this power.

One of the writers, Duncan Rouleau, stated that the series will be set in "the video game universe created by Sonic Team" and that "possible Sega crossovers are not ruled out.

On December 5, 2024, WildBrain announced that Nickelodeon had acquired pay broadcast rights to the series in the United States, Australia, Italy, Germany, Austria, Switzerland, and the UK and Ireland.

[30] Polly Conway of Common Sense Media said that it is a fun, frenetic animated series that touts teamwork, also mentioning that it features violence.