A shooting in the heart of Stargate Command is only the beginning for Daniel Jackson and Vala Mal Doran.

Suddenly it's friend against friend, none of their allies can be relied upon and they're the universe's only hope to foil the latest scheme concocted by the last System Lord, Ba'al.

Will Daniel, Vala and a few of Vala's less than savoury friends be enough to stop a conspiracy that reaches deep into the heart of Stargate Command and threatens to destroy everything they've spent years building?

(by James Swallow)

Daniel Jackson is in custody for a crime and no one believes he is innocent – because Stargate Command has absolute proof of his guilt. Luckily, one person is willing to give him the benefit of the doubt.

Unluckily, that person is Vala Mal Doran, reformed thief and least trustworthy member of team SG-1. Can she clear Daniel’s name and help him discover what’s really going on?

(by Sally Malcolm)

A visit from Vala's 'friend' Keto results in the Sun Tzu, Daniel and Vala being sent to investigate a rapidly disintegrating ship. Once there, they discover evidence of Ba'al's experiments – but they're not prepared for what else he's left behind.

It's a case of nature or nurture – but will Daniel and Vala make a decision that will save the Sun Tzu or condemn all on board to death?

(by Steve Lyons)

Having discovered that Ba'al has placed a clone infiltrator close to one of his old friends, Daniel accompanies the Sun Tzu to warn him of the imminent danger the clone poses.

Meanwhile, Vala enlists the aid of some of her former "associates" to track down Ba'al and bring him to justice. But can she trust any of them to complete the mission without betraying her for their own ends?

From Big Finish