When Dylan activates an experimental cloaking device, he gets swept into an alternate dimension. Harper is the commander, he has overthrown the commonwealth, and is unknowingly working for the Abyss. Dylan looks for allies to oppose Harper, and to find a way to get back to his own dimension

Andromeda Season 4 Episodes...

• s04e01 - Answers Given to Questions Never Asked (2)
• s04e02 - Pieces of Eight
• s04e03 - Waking the Tyrant's Device
• s04e04 - Double or Nothingness
• s04e05 - Harper/Delete
• s04e06 - Soon the Nearing Vortex (1)
• s04e07 - The World Turns All Around Her (2)
• s04e08 - Conduit to Destiny
• s04e09 - Machinery of the Mind
• s04e10 - Exalted Reason, Resplendent Daughter
• s04e11 - The Torment, the Release
• s04e12 - The Spider's Stratagem
• s04e13 - The Warmth of an Invisible Light
• s04e14 - The Others
• s04e15 - Fear Burns Down to Ashes
• s04e16 - Lost in a Space that Isn't There
• s04e17 - Abridging the Devil's Divide
• s04e18 - Trusting the Gordian Maze
• s04e19 - A Symmetry of Imperfection
• s04e20 - Time out of Mind
• s04e21 - The Dissonant Interval (1)
• s04e22 - The Dissonant Interval (2)

Andromeda Show Summary

The Commonwealth spanned three galaxies and a myriad of cultures. Dylan Hunt, captain of the star ship Andromeda, was frozen in time and awoke three centuries later to find the Commonwealth had fallen.

To fight back the chaos among the stars, Hunt must use the Andromeda to restore the Commonwealth and bring unity to the galaxy once again. He recruits a mercenary, Tyr Anasazi, and the crew of the Eureka Maru: Captain Beka Valentine, Engineer Seamus Harper, Physicist Rev Bem, and Medical Officer Trance Gemini.

After discovering the Spirit of the Abyss and its powerful weapon, the Magog Worldship, the need for the Commonwealth is greater than ever. 50 member worlds are finally recruited, and the reconstruction of the Commonwealth is finally truly underway.