A doctor approaches Zack and Cody and tells them that they would be ideal for the Gemini Project, a massive project studying the effects of twins.A doctor approaches Zack and Cody and tells them that they would be ideal for the Gemini Project, a massive project studying the effects of twins.A doctor approaches Zack and Cody and tells them that they would be ideal for the Gemini Project, a massive project studying the effects of twins.