Lois & Clark - The New Adventures of Superman

The Daily Planet is purchased by Leslie Luckabee, a misterious young man from Australia, and at the same time, a super-powered woman named Vixen arrives in Metropolis to fight against the crime, but instead of give the criminals to the police, she kills them. In truth, Leslie Luckabee is Lex Luthor's son and with the help of the Troll/Mr. Smith, he's using Vixen to kill those who bought his father's companies.