Justin Long and Emmy Rossum are star-crossed lovers whose relationship blooms and unravels over the course of six years in this mysterious, dazzlingly original romance. When a chance encounter brings together the cynical Dell (Long) and the quick-witted Kimberly (Rossum), the stage is set for a tempestuous love affair that unfolds like a puzzle. As the film zigzags back and forth in time-from a meteor shower in LA, to an encounter in a Paris hotel room, to a fateful phone call-an unforgettable portrait of a relationship emerges. Sumptuously shot and boasting incredible chemistry between the leads, Comet is a one-of-a-kind cosmic love story.

一位女医生在前往新城市的路上，在一个小镇因超速行驶被抓，法官判处她从事社会服务工作。从此，她的生活发生了翻天覆地的变化，她开始质疑自己曾经的所有抱负和人生理想。

阳光洒在宁静的小镇上，微风吹过，带来阵阵花香。然而，这份平静被一份逮捕令打破。命令要求布雷克与熊爪副警官穿越全国，去逮捕一名危险的罪犯。熊爪副警官深知任务的艰巨，但布雷克义无反顾地接受了命令。