The time-gap between this Kimagure Orange Road movie with the previous movie, ova and tv series is pretty wide.. maybe around 10 years. If you watch the old Kimagure Orange Road series and this one, you will notice the difference between old-style anime drawing and this one. Anyway.. here is the captions from the box provided by ADV:
A near-fatal traffic accident sends 19 year-old Kyosuke Kasuga spinning three years forward in time, where his future self is missing and presumed dead. It's a race against time to find the missing 22 year-old Kyosuke and return the 19 year-old version to his proper time before he dies. To make matters worse, Kyosuke stumbles across the vivacious Hikaru, recently returned to Japan, whose feelings for him haven't changed. Now, on top of everything else, he's faced with the added task of remaining true to his beloved Madoka. Will love triumph over all obstacles? Or will the relationship so painstakingly built unravel?