“Bringing Home the Beacon” is episode sixteen of season four of Farscape.
Whilst the men were trying to improve themselves at a mental arts training camp in the previous episode, “Mental as Anything”, the women were going to a dead leviathan in order to pick up a part – a sensor distorter – to cloak Moya from long range scans. The man are back on Moya, but the others are overdue. The part is illegal, so you just know that something is going to go wrong. And it does, Commandant Grayza arrives with the Peacekeepers. Then the Scarrans arrive.
Grayza is willing to betray alliances in the sake of peace – and personal power, although she doesn’t state it like that.