SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!
The world needed a hero – it got a hedgehog. Powered with incredible speed, Sonic embraces his new home on Earth – until he accidentally knocks out the power grid, sparking the attention of uncool evil genius Dr. Robotnik. Now, it’s supervillain vs. supersonic in an all-out race across the globe to stop Robotnik from using Sonic’s unique power to achieve world domination.
SPOILERS AHEAD
Sonic the Hedgehog Plot Summary and Synopsis
On a distant planet, Sonic, a blue hedgehog who can run at supersonic speed, is chased by a tribe of echidnas for his power. His guardian, Longclaw the Owl, gives him a bag of rings that opens portals to other planets. She uses one to send him to Earth while she fends off the echidnas. Ten years later, Sonic enjoys a secret life near the town of Green Hills, Montana, but longs to make friends. He idolizes the local sheriff, Tom Wachowski, calling him “Donut Lord”, and his veterinarian wife, Maddie, unaware the pair are planning to relocate to San Francisco, as Tom has been offered a position within the San Francisco Police Department.
One night, Sonic becomes upset over his loneliness when playing baseball by himself, and runs at supersonic speed, and as a result, inadvertently triggering an electromagnetic pulse which causes a power outage across the Pacific Northwest. The United States Department of Defense reluctantly enlists roboticist and scientific genius Dr. Robotnik to investigate. Tom discovers Sonic in his shed and accidentally shoots him with a tranquilizer dart, causing Sonic to drop his bag of rings through a portal to San Francisco’s Transamerica Pyramid instead of the mushroom planet as he intended. Tom reluctantly agrees to help Sonic and the two flee. As the pair evade Robotnik, who labels Tom a domestic terrorist, they slowly bond, with Tom learning about Sonic’s desire for a real friend. Sonic creates a bucket list and Tom helps him complete several entries along their journey.
Having discovered one of Sonic’s quills, Robotnik realises it has the potential to power his robots and becomes obsessed with capturing Sonic. As he tracks them down, Tom and Sonic debate over Tom’s plans to leave Green Hills, which Sonic disapproves of. Shortly after defeating a robot sent by Robotnik, an explosion injures Sonic. Arriving in San Francisco, Tom brings him to Maddie who treats him. While Tom explains their situation to Maddie, Sonic receives a new pair of sneakers from Maddie’s niece. The group soon head to the roof of the pyramid and recover the rings. Robotnik arrives in a hovercraft and attacks them, forcing Sonic to use a ring to send Tom and Maddie back to Green Hills.
Sonic flees from Robotnik, who uses the power of Sonic’s quill to match his speed. The two engage in a chase across the world through France, China, and Egypt – inadvertently completing several of Sonic’s bucket list entries at the same time – ultimately returning to Green Hills. Robotnik incapacitates Sonic, but Tom and the townsfolk intervene allowing Sonic to regain his strength; Sonic defeats Robotnik by sending him to the mushroom planet. Following the incident, Tom and Maddie decide to stay in Green Hills and let Sonic live with them. The government erases all evidence of the events, including records of Robotnik’s existence.
The Ending
Meanwhile, a now insane Robotnik, still in possession of Sonic’s quill, begins plotting his revenge against his future adversary. A little while later, Tails, a two-tailed fox, emerges from a ring portal in search of Sonic.
Source: Wikipedia (CC BY-SA 3.0).