This marks the first appearance of the P-90 sub-machine gun to replace the MP-5s used as the primary weapons of SG-1.
When Daniel pulls the bullet from the Chaka's hand, he mentions Androcles and the lion. This is the story of a runaway Roman slave who takes shelter in a cave, which turns out to be the den of a wounded lion. Androcles removes a thorn from the lion's paw. The lion then becomes tame towards Androcles and shares food with him, Years later Androcles returns to Rome and as a fugitive slave is condemned to death, to be killed by wild beasts in the Circus Maximus. The beast turns out to be the same lion, which does not attack and Androcles is spared.