The first of these specials is the hourlong "Legendary Summer," which will premiere on April 9, a date that's fittingly also known as National Unicorn Day. It will then be followed by the 44-minute ...

a date that’s fittingly also known as National Unicorn Day. It will then be followed by the 44-minute “Winter Solstice” on Nov. 6. “Legendary Summer” will focus on Layla (Kamaia Fairburn).