​In Barbie: Tricks and Treats, Barbie "Malibu" Roberts and Barbie "Brooklyn" Roberts love volunteering at their local Pet Rescue, helping care for pets waiting to find their fur-ever homes. With help from all their friends, Brooklyn and Malibu host a costume party to get these furry critters adopted. Featuring treats, music and dancing, the party is set for success -- but when their handmade costumes for the pet parade go missing, Malibu and Brooklyn are worried…