A new Rock Troll named Blaze Powerchord arrives in TrollsTopia with a talent for playing "mouth guitar" (pretending to play guitar by making noise with the mouth). When Blaze challenges Minuet Sonata to a mouth guitar contest, Val takes Minuet under her wing and teaches her to rock out with a pretend guitar.

When Val is celebrated as the greatest Troll ever at Hopscotch Extreme, she shares with Poppy that her record-breaking hopscotch run was a fluke.

When Blaze Powerchord's old bandmates come to town, Poppy and Minuet pretend to be his new bandmates.

When an underground river of lava threatens all of Rock Hollow, Poppy leads the Hard Rock Trolls deep under the earth to save the day.