Plot summary
Hyde moves back in with the Formans, but refuses to reveal why. Meanwhile, Fez begins taking ballet lessons to meet women, and Kitty hires Leo ( Tommy Chong ) and his cousin, Theo ( Richard Karn ), to renovate the basement. Eventually, Hyde reveals that his father, Bud, has left again, necessitating Hyde to move back in with the Foremans. Also, Kelso and Jackie's relationship make Donna realize something about herself and Eric.
Credits
Adapted from Wikipedia contributors, That '70s Show season 4. HTML formatting and reference markers removed.