Presented as a story to a group of students by their teacher Lena that takes place in the distant future, ''The Last Mimzy'' is the story of the attempt by humans in the distant future to avert a catastrophic ecological disaster that has destroyed their world. Humanity has become "isolated and warlike," and one scientist is desperately working to save the earth and its people. High tech devices disguised as toys are sent back in time, where they are found by Noah (Chris O'Neil) and Emma (Rhiannon Leigh Wryn) Wilder, children living in early-21st-century Seattle. The "toys" are incomprehensible to them, except for what appears to be a Stuffed animal rabbit. Sensing the paranormal strangeness of the devices, the children initially keep their discovery secret from their parents.