| Episode cast overview: | |||
| Richard Dean Anderson | ... | Colonel Jack O'Neill | |
| Michael Shanks | ... | Dr. Daniel Jackson / Thor | |
| Amanda Tapping | ... | Captain Samantha Carter | |
| Christopher Judge | ... | Teal'c | |
| Don S. Davis | ... | Major General George Hammond | |
| Tamsin Kelsey | ... | Gairwyn | |
| Andrew Kavadas | ... | Olaf | |
| Douglas Arthurs | ... | Heru'ur (as Douglas H. Arthurs) | |
| Mark Gibbon | ... | Thor | |
| Laara Sadiq | ... | Technician | |
| Michael Tiernan | ... | Horus Warrior | |
O'Neill and the team return to Cimmeria, the planet where they destroyed Thor's Hammer to help Teal'c escape. They find that the Goa'uld have invaded and many of the people are dead. Can they help to find Thor's weapons to fight off the invasion before they are all captured or killed? Written by Anonymous
Yeah...Pi is the Diameter to the circumference, not the radius to the circumference. Usual good stuff from SG1 otherwise.