A test gone wrong leaves Jack and Teal'c marooned in space aboard a damaged prototype attack ship

Jackson's teammates notice a disturbing change in him when he is reunited with the Harcesis child and given the Goa'uld genetic memory.

When Earth's attempts to exploit a newly-discovered naquadah mine are thwarted by a tribe of indigenous Unas, SG-1 must turn to an old friend for help.