Using simple tools and resources, Dad and the boys begin work on a Polynesian double canoe (commonly referred to as a catamaran) to navigate the family back to the USA from Papua, Indonesia. With help from other missionaries and a few superstitious locals, the whole family works to construct a watertight wooden vessel. However, big problems must be overcome. The parallels to Noah, his sons, and the huge Ark they had to build spur the Wilds along to complete their boat and prepare for the journey.