Cowboy Bebop the Movie: Knockin' on Heaven's Door (2001)

In the year 2071, on Mars, a catastrophic explosion occurs, unleashing a deadly virus that claims numerous lives. The authorities, on high alert for possible new threats, offer a large reward for the capture of those responsible. Meanwhile, aboard the spaceship "Bebop", Spike and his crew of bounty hunters, short of cash and eager for a new adventure, learn the news of the reward... but they are not the only ones.