Sonic to the Rescue is the fourth DVD of Sonic Underground episodes to be released. Published by DiC Entertainment on 19 February 2008, this DVD consists of four episodes of Sonic Underground. The total running time of the DVD is approximately 88 minutes.
- The Last Resort - Sonic, Sonia, and Manic travel to a lovely vacation community, but with Doctor Robotnik holding sway over the whole area, it begins to look like the resort isn't as peaceful as it seems.
- Head Games - The hedgehogs head to Speedster Island, where the natives all worship a series of stone structures that happen to look just like Sonic, Sonia and Manic.
- Dunes Day - The hedgehogs travel through the desert, where they meet a tribe of nomads, but Manic doesn't trust the leader of the group, thinking they're up to no good.
- The Deepest Fear - Sonic, Manic and Sonia visit Port Mobius, where they learn that a sea beast has been terrorizing local ships, but a conversation with Captain Squeege reveals that the monster is actually Robotnik, who is scamming the townspeople into paying him for protection.