Ever since he was a baby, Iggy Peck has built towers, bridges, and buildings, which comes in handy when his second grade class is stranded on an island during a picnic.
When Lila, a worrier, moves to a new town, the what ifs only grow, and she feels alone and invisible until her teacher finds a creative and kind way to make Lila feel welcome and open to new experiences, a lesson that will stay with her long after second grade.
When Rosie is unable to invent a contraption to help one of Aunt Rose's Raucous Riveters friends, she calls on classmates Iggy Peck and Ada Twist to help.