While preparations are underway for the marriage of Athenian duke Theseus (Derek Godfrey) and Amazon queen Hippolyta (Barbara Jefford), fairy king Oberon (Ian Richardson) and his tricky jester, Puck (Ian Holm), make mischief with the indiscriminate use of a powerful love potion. Lysander (David Warner) and Demetrius (Michael Jayston) both fall for Helena (Diana Rigg), raising the jealousy of Hermia (Helen Mirren), whose father is pressuring her to marry Demetrius despite Lysander's love for her.