In this sequel to the popular kids novel, Hello There, We've Been Waiting For You!, it's summertime and Madison McGee's best friends, Violet and Noah, join her in Costa Rica, where she's staying with Rosalie Claire. Their dreams of lazy sunny beach days come to a screeching halt when Madison's grandmother, Florida Brown, unexpectedly shows up on their doorstep. Dangerously ill with a mysterious ailment, Florida needs help. But the magic in Rosalie Claire's fanny pack has stopped working. Only one person knows how to revive it - Grandma Daisy. The only problem? She's been dead for five years.

Enter the MegaPix 6000. Together, Madison and her friends have to figure out a way to turn the magic TV into a time machine so they can visit Grandma Daisy and save Florida. Once the intrepid trio hurtles into the past, a dizzying adventure unfolds, filled with heart-filled, unexpected consequences.