Supernova

Despite scientist Nathan's warnings, his boss continues an experiment meant as publicity for his satellite firm: exploding an asteroid. Instead it splits, and the major piece, the size of Iceland, changes course to earth. It is deflected but so close that it shift our course closer to the sun, causing rapid extreme heating, hopefully only mid-term. Nathan warns his sister, TV journalist Carly, and she her lover, police detective Tom. He brings his unruly daughter Kim, her ex-con lover C.J. and her mother, nurse Bonnie, when Nathan offers a flight to a friend's Arctic weather station. Tom takes charge of a dangerous trip to the airport, as everywhere on earth things catch fire and people fight for water, transport and sheer looting.

A huge solar flare blasts Mercury out of it's orbit and provides it with an intense magnetic field and it's on collision course for Earth.

An alien similar to Ra appears out of the Stargate, killing five soldiers and kidnapping another, a year after the original Stargate mission. A new team is assembled, including some old members, and they go in search of the missing soldier in order to find out how Ra could still be alive. Meanwhile, the alien Goa'uld kidnap Sha're and Skaara, implanting them with symbiotes and making them Goa'uld hosts.

Meg and Charles Wallace are aided by Calvin and three interesting women in the search for their father who disappeared during a government experiment. Their travels take them around the universe to a place unlike any other.

The Bionic Woman and the Six-Million-Dollar Man reunite--with a few younger bionic assistants--and try to catch a bionic spy.