The planet LaMetal begins a war of conquest with the Earth, and the only one who can defend the world from this threat is the Queen Millennia, a former princess of LaMetal who has made Earth her home.
Queen Millennia (Season 1)

9 Minutes and 9 Seconds Past Midnight on 9/9/1999 (Episode 1)
Writer: Keisuke Fujikawa
Air date: 1981-04-16
Runtime: 25 min

Keep Your Eyes on Outer Space, Hajime! (Episode 2)
Writer: Keisuke Fujikawa
Air date: 1981-04-23
Runtime: 25 min

The Machinations of the Millennial Bandits (Episode 3)
Air date: 1981-04-30
Runtime: 25 min

The Missing Meteorites (Episode 4)
Air date: 1981-05-07
Runtime: 25 min

A Ship Deep Underground... (Episode 5)
Air date: 1981-05-14
Runtime: 25 min

The Great Underground Apartments (Episode 6)
Air date: 1981-05-21
Runtime: 25 min

An Invitation to the Underground Base (Episode 7)
Air date: 1981-05-28
Runtime: 25 min

An Explosion Underground Invites Danger! (Episode 8)
Air date: 1981-06-11
Runtime: 25 min

Closing In on the Mystery of the Great Cavern! (Episode 9)
Air date: 1981-06-25
Runtime: 25 min

Battle of the Sacred Graveyard (Episode 10)
Air date: 1981-07-09
Runtime: 25 min

Are the Millennial Bandits Enemies or Allies?! (Episode 11) 7.0
Air date: 1981-07-23
Runtime: 25 min

The Astronomical Telescope's Secret (Episode 12) 7.0
Air date: 1981-07-30
Runtime: 25 min

The Dawn of Execution Approaches (Episode 13) 7.0
Air date: 1981-08-13
Runtime: 25 min

Queen of the Mechanical Palace (Episode 14) 7.0
Air date: 1981-08-27
Runtime: 25 min

Truth at Twilight (Episode 15) 7.0
Air date: 1981-09-10
Runtime: 25 min

The Demon Planet Larmetal (Episode 16) 6.0
Air date: 1981-09-17
Runtime: 25 min

The Day Yayoi Leaves the Observatory (Episode 17) 6.0
Air date: 1981-09-24
Runtime: 25 min

Earthquake, the Harbinger of Catastrophe (Episode 18) 7.0
Air date: 1981-10-01
Runtime: 25 min

Decision for Tomorrow (Episode 19) 6.0
Air date: 1981-10-08
Runtime: 25 min
Earth's Looming Crisis!! (Episode 20) 6.0
Air date: 1981-10-15
Runtime: 25 min

Geran the Grim Reaper's Suspicions (Episode 21) 7.0
Air date: 1981-10-22
Runtime: 25 min

A Man Lurking in the Shadows (Episode 22) 7.0
Air date: 1981-10-29
Runtime: 25 min

Showdown on a Stormy Night (Episode 23) 7.0
Air date: 1981-11-05
Runtime: 25 min

Two Pendants (Episode 24) 8.0
Air date: 1981-11-12
Runtime: 25 min

The Ties That Bind Bitter Enemies (Episode 25) 7.0
Air date: 1981-11-19
Runtime: 25 min

A Fateful Reunion (Episode 26) 8.0
Air date: 1981-11-26
Runtime: 25 min

Envoy From the Wicked Planet (Episode 27) 6.0
Air date: 1981-12-03
Runtime: 25 min

On the Road to Rebellion (Episode 28) 7.0
Air date: 1981-12-10
Runtime: 25 min

Duel at the Black Capital (Episode 29) 7.0
Air date: 1981-12-17
Runtime: 25 min

Fire Upon the Fateful Planet! (Episode 30) 6.0
Air date: 1981-12-24
Runtime: 25 min

Soar On, Phoenix! (Episode 31) 6.0
Air date: 1982-01-07
Runtime: 25 min

The Order To Attack Earth (Episode 32) 6.0
Air date: 1982-01-14
Runtime: 25 min

Queen Millennia's Miracle (Episode 33) 7.0
Air date: 1982-01-21
Runtime: 25 min
Battleship Twin Star Attacks! (Episode 34) 7.0
Air date: 1982-01-28
Runtime: 25 min
The Great Underground Evacuation! (Episode 35) 7.0
Air date: 1982-02-04
Runtime: 25 min
Prelude to the Earth's Devastation (Episode 36) 7.0
Air date: 1982-02-11
Runtime: 25 min
Cross the Sea of Despair! (Episode 37) 7.0
Air date: 1982-02-18
Runtime: 25 min
Prelude to the Decisive Battle (Episode 38) 7.0
Air date: 1982-02-25
Runtime: 25 min
A Futureless Victory (Episode 39) 8.0
Air date: 1982-03-04
Runtime: 25 min
The Curse of the Dark Comet (Episode 40) 6.0
Air date: 1982-03-11
Runtime: 25 min
The Last Day of the Earth (Episode 41) 7.0
Air date: 1982-03-18
Runtime: 25 min
The Legend of Queen Millennia (Episode 42) 6.0
Air date: 1982-03-25
Runtime: 25 min

Seasons

Episodes 42