At the end of a long day guarding the galaxy, it is time for Groot
to settle down. Night night, Groot, it's time for bed, time to rest
your sleepy... Wait a minute: here's Rocket! He has one more
important mission for Groot. But is it real, or just the beginning of a
dream? Either way, it's quite thoughtful of Groot's Avenger friends to
come by and help him save the day and even say goodnight!