The full story
Five more shorts, slightly longer than the first batch, taking Baby Groot off the ship and out onto alien worlds. He's still a baby and still almost wordless, but the finale gets a narrator.
Are You My Groot?: On an alien planet, Groot finds a strange egg in a nest and adopts the hatchling as his own. It won't stop pooping, which tests his patience. When its siblings trample Groot on their way back to their mother, she carries them all home, and Groot watches them go.
Groot Noses Around: Hunting for batteries, Groot gets a prosthetic nose attached and discovers the sense of smell. Then he gets a whiff of his own home, and pulls the nose back off as soon as he has the batteries.
Groot's Snow Day: On a snowy planet, Groot builds a robot snowman, which comes to life and turns on him and the ship. He beats it with one well-aimed snowball: its head is an engine part that ignites when it's hit.
Groot's Sweet Treat: Groot spots an ice cream truck of a spaceship, turns the ship upside down looking for money, wrecking a claw machine along the way, and chases it in a capsule. Both crash. Groot ends up eating what's left of the ice cream, surrounded by Nova Corps patrol ships.
Groot and the Great Prophecy: The Watcher narrates as Groot wanders into a temple built around a sacred seed. He loses the seed to lava and brings the temple down, then climbs out of the rubble with new leaves grown, and the Watcher decides that Groot himself is the seed rising from the ground.