#1, Michael kills his older sister when he is 6, and goes to a sanitarium for 15 years, then he escapes and targets his younger sister, JL Curtis, he kills 5 of her friends, gets shot 6 times and falls off the 2 floor balcony.
#2, Same night, Michael, still alive, targets laurie again, at the hospital, kills several of the staff, but get's torched in an ether and o2 explosion, and laurie escapes again
#3, no relation to Michael, Silver Shamrock Halloween corporation attempts to take over world with power from stonehenge, ending inconclusive
#4, 10 years after being blown up, michael goes after his niece, Jamie, he fails, gets shot a lot, falls in a big pit, and gets blown up
#5, one year later, he targets his niece again, is apprehended but escapes custody when the "Man in black" blows up the police station, Jamie and Michael are both kidnapped by a cult
#6, six years later, Jamie gives birth to michael's son, after the cults experiments, she is killed, but the child escapes in the care of Tommy Doyle (child laurie babysat in H1)and Sam loomis (michael's psychiatrist). Michael's motives were also revealed, he is cursed by thorn, a 17 star constellation that periodically appears on halloween
#7, 3 years later, Michael goes after laurie again, who now has a son, and is in hiding, running a school in california, he kills 2 students and one of the staff, but this time, barely escapes with his own life
#8, michael finally kills laurie, and returns to his home, where a tv network is filming an investigation of the house, he kills all but two people and if burnt to a crisp, but reawakens in the morgue