B.J. Nelson

The archetypical renegade Texas Ranger wages war against a drug kingpin with automatic weapons, his wits and martial arts after a gun battle leaves his partner dead. All of this inevitably culminates a martial arts showdown between the drug lord and the ranger, and involving the woman they both love. (imdb)

Good and evil scanners combatting when a crooked politician schemes to gain control of a major city. Scanners are people who, because their mothers had taken a certain drug during pregnancy, have acquired telepathic powers. One scanner escapes from a mental center and is hired by the politician to use his powers to gain control of others minds, and then, their actions (imdb)

A new drug turns good "scanners" bad, and makes a woman into a telekinetic megalomaniac. (Leonard Maltin's Movie & Video Guide)

A slacker turns P.I. and solves a rock star's murder. (imdb)