Carter focuses on Ancient ex-admirer Orlin, who assumed a boy's form to descend and help against the Ori, but his priceless knowledge overloads a human brain with damning results, possibly disabling him from helping to develop a cure. Daniel has joined Mitchell, returning to the Sodan Jaffa planet where Lord Haikon has agreed from experience that the Ori are evil, and even accepts to test the sonic devise to mentally disable the Prior on their planet, which requires perilously provoking him so Daniel can test the relevant frequency. The plague is spreading rapidly worldwide, causing unrest among the International Committee, and infects general Landry. Jaffa leader Gerak, having turned Ori Prior, force Teal'c and Bra'tac to implement their desperate plan to make him see reason by mounting a 'rebel fleet' - threatening with a bloody civil war- but it's Teal'c taking him on a last hope visit to his father's grave that rekindles their true values, so as to make him risk everything by turning on the Ori and helping cure the plague.
—KGF Vissers