- Breakthroughs in embryonic stem-cell techniques; 10th planet; risks of flu pandemic; ivory-billed woodpecker; hurricanes; cancer researcher Tyler Curiel.

- With the doctor and Stacy out of town, the team is left on its own to help a journalist whose collapse is followed by an inability to speak clearly.

- Sam and Dean contact their father, who tells them to stop searching for him and sends them to a small town in Indiana where people are being sacrificed to a pagan god.

- When an 8-year-old girl is kidnapped on her way home from school, DNA tests on the blood found in the abductor's abandoned van reveal she has leukemia.

- The law firm represents a CEO who used his status with a pharmaceutical company to ensure that he received the non-placebo in a promising anti-cancer drug test.

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