Leaping lizards! Annie finds a baby as she and Joe go to check out the new bridge project. Annie is ready to give the errant mother a piece of her mind! Until they meet Mrs Rinelli, and discover they know her son. It was Caesar who was supposed to be watching the baby, and mama sets him straight.
With a promise to come back to see little Rosa again, Annie, Joe, and Caesar go to watch the bridge construction. Caesar knows about the bridge because his father is part of the work crew. Leaping lizards, Annie is amazed at the activity. The kids set out to meet the impressive Mr Strong, the bridge engineer.