Stargate SG-1 (season 8)

We go to the beginning of the twentieth century. Explorers who were performing expedition in Egypt faces an ancient artifact that stayed a mystery for many members of expedition. American military thanks to an egyptologist managed to translate strange symbols on the mysterious arch of this relic. As the inscription says, this significant artifact is a gate to another world. Amazed with that fact egyptologist Jackson decides to activate the gate. Now the main hero gathers an expedition.