Declan has a little brother named Rylan who has spinal bifida and was never able to walk. Rylan obsesses about space.. why? Because there is no gravity in space. In space, Rylan could play and move about like everyone else. On clear nights, Declan would push Rylan down the boardwalk of Cape Coral, Florida. They would both gaze at the stars and imagine they were traveling through space.

Tonight is a cosmic event called Halley's Comet. Rylan is stoked and has been planning to watch this in the backyard with his brother. There is only one problem...

It just so happens that tonight, Declan's crush, Winnie, is having a party. What will Declan do? Keep his promise or ditch his brother for the girl?