All five episodes of I Am Groot, the new collection of shorts starring Marvel’s most adorable baby tree, are now streaming on Disney+. Overall, the shorts (which come out to a grand total of 15 minutes of content) are fine if forgettable, but there’s one cameo that’s a genuinely sweet surprise. Plus, it sets up a really interesting dynamic that we know will be explored more in Guardians of the Galaxy Vol. 3!

The shorts follow Groot in his days as a baby following the events of Guardians of the Galaxy, when he sacrifices himself to save Rocket and the others in a spaceship crash, and then grows back as a twig in a pot. In the shorts, Groot tousles with a bonsai tree, soaks in a hot spring, meets a race of aliens even tinier than he is, and has a dance-off with a haughty doppelgänger. In the final short, “Magnum Opus,” Groot works hard on an art project, and someone very important to him shows up to take a look.