Seefra is a collection of nine planets that orbit the Methus twin suns. The planets are completely cut off from the rest of the slipstream. The only way out is through the Route of Ages but this keeps sending Andromeda Ascendant back to where they began. When the Methus Suns start hotting up, Andromeda has to move people off planets to ones further away. It doesn`t go to plan. The environment of Seefra is not too disimilar to worlds that appear in Defiance and Firefly.
Pocket Universe as Hohne put it. The planet from the fifth season. Where the Andromeda crew is trapped, stranded in the middle of nowhere. And yet, they manage to save the people of the entire system of nine planets. They're real heroes!