This episode is as much about a relationship between a couple of troubled souls as its science fiction element. A young deaf woman (Marlee Matlin who appeared frequently on "The West Wing") finds an implant has failed to bring her hearing back. She is married to an insensitive jerk who has no respect for her feelings. Shortly after her surgery, she begins to receive binary code messages through the implant. There is a scene where she begins to put ones and zeros, along with some x's on the blackboard in front of her hearing impaired students. Doctors, of course, convince her husband that she is having a psychotic episode and needs medications. Meanwhile, as she waits in the hospital, a janitor who has himself been diagnosed with schizophrenia (and who was dismissed as an engineer with NASA, played by Larry Drake). Takes her binary notes home so he can input them on his computer. What follows is a cat and mouse game as the clueless husband refuses to listen to anything his wife tells him, seeing her as dangerous to their child and mentally unbalanced. She and the former engineer realize that they have received messages from an alien life form and it is critical that they build a laser to keep this species from going out of control and destroying themselves. It is a neat and intense episode. The hard part to believe is the incredible machine the two are able to build. They do have pretty limited resources. Also, there is an egalitarianism at work here that will probably get them nothing going forward.