Earth scientists have been in contact with counterparts on the planet Chromo and they have perfected a teleportation device with one portal on each planet. Mice and inanimate objects have been transferred between the two planets and now they are about to perform an exchange, where one member of each species is sent to the other planet. The lead scientist on Earth goes to a prison to look for a volunteer for the transfer and convict Chino Rivera volunteers, although his real goal is to escape. He is serving a life sentence for murder and even if the transfer between planets is successful, there is no guarantee that he will benefit. A Chromite has already made the journey and is wandering around unescorted on the laboratory grounds. It throws something into the pond that leads to the growth of a living thing and one of the scientists discovers the growth and finds a way to kill it. This leads to his being attacked by the Chromite. While the Chromites professed friendship, there is an ulterior motive in their actions. The worst part of this episode is the wandering of the Chromite unescorted around the facility. There are armed security guards all around the grounds, yet the Chromite is free to do what it wants. This would not happen and there is no attempt to debrief the Chromite to learn more about their society, physiology and planet. The scientists have in their possession one of the greatest opportunities for scientific study and they allow it to wander around engaging in nefarious mischief. The problem with many "human meets alien" situations is the paranoia expressed by humans. In this episode the problem is the lack of curiosity and paranoia.