Dr. Stephen Ledbetter (Richard Thomas) vytvořil nanoboty, mikroskopické stroje velikosti molekuly, kterými chce vyléčit jakoukoliv chorobu, tedy např. i rakovinu. Ačkoliv zatím není povoleno testování na zvířatech, jeho kamarád Dr. Andy Groenig (Peter Outerbridge), který právě požádal Stephenovu sestru Judy (Tammy Isbell) o ruku, vyzkouší preparát sám na sobě, protože má nevyléčitelný nádor. Jelikož nemá Andy co ztratit, tajně si preparát zavede do těla a doufá, že bude živým důkazem Stephenova fungujícího přípravku.

Dr. Arthur Zeller is the doormat of the anthropology department, a mild-mannered professor who is the butt of his colleague's jokes and who never gets the respect he deserves. After the department head, Prof. Martin Stansfield passes over his cutting-edge research into evolutionary psychology and funds the project of his rival, Dr. James Feind, Zeller takes matters into his own hands.

When a transport ship crashed and wiped out the colony on Venus, Capt. Miles Davidow (C. Thomas Howell) was the sole survivor. But, after he's rescued by a team that includes his fiancee, Kate Girard (Amanda Tapping) and Scott Perkins (Jeffrey Jones), it soon becomes clear that Davidow did not escape unscathed. Removed from the high radiation atmosphere of Venus, his body is reacting to the Earth's air like that of a chemotherapy patient. When doctors give him the radiation his body seems to crave, strange things start to happen. Davidow's body begins to spawn duplicate parts - a hand, a torso and more from wounds that miraculously heal. In spite of this, Miles and Kate get married while he's still in isolation, but his time on Venus and the strange creatures he encountered there have had a profound change on Miles.

Dr. Martin Nodel (Ron Rifkin), který učí na vysoké škole genetiku, se zabývá studiem lidského genomu. Nyní přišel s myšlenkou, že introny, dosud nezmapovaný genetický materiál, stojí za dalším evolučním vývojem lidské bytosti. Aby svou teorii dokázal, vyvinul aktivátor, který činnost intronů spustí. Svým pokusem na rybě, která z vody vyleze na souš, si však znepřátelí vedení fakulty. Zároveň si je jistý, že mu dědičná Wilsonova choroba krátí život a navíc se od vlastního syna Paula (Ryan Reynolds) dozví, že mnoho let promrhal zbytečným výzkumem. Proto aktivátor vyzkouší na sobě a brzy se dostaví výsledky.

When Matthew Logan gets out of prison after serving time for spousal abuse, his first stop is a gun show. He buys a strange handgun from a mysterious stranger and uses it to shoot his wife. The gun attaches itself to Logan's hand and arm, beginning a process which will transform his body.

Musician Jacob Hardy (Nicholas Lea) is strolling with his fiancee Kara Delaney (Stacy Grant) when a meteor explodes over the city. One of the tiny fireballs which rain down seems to chase Jacob, striking him down and penetrating his skull, instantly killing him. Medical Examiner Dr. Ian Michaels (Tom Irwin) conducts the autopsy with the help of his assistant, Ollie Gibb (Don MacKay). He finds an unusual bullet-like projectile lodged in the victim's brain.