A Tandaran internment camp holding Suliban civilians who had no link to the Cabal, where Archer and Mayweather were imprisoned in 2151 and helped the inmates to escape.
Detention Complex 26 is the setting of the Enterprise episode Detained. The Tandarans, at war with the Suliban Cabal, have rounded up Suliban living on their worlds and confined them in camps like this one, in their words for the prisoners' own protection.
Archer and Mayweather are brought there after their shuttlepod strays into Tandaran military space. The commandant, Colonel Grat, is courteous but wants what Archer knows about the Cabal. Among the inmates are Danik, who lives there with his young daughter, and the embittered Sajen.
Archer concludes that the inmates are innocent people held for their species alone and refuses to leave without helping them. With Enterprise's aid he stages a breakout in which the Suliban reach their impounded ships.