One False Step.
The UAV plane crashes into some sort of plant, during a routine reconnaissance mission,
The inhabitant are very unusual, the SG-1 team discover,
they are a friendly, gentle, people that lead a very simple lifestyle.
Suddenly though, these gentle aliens begin falling sick and
before long a plague like illness effects most of the inhabitants.
DR. Carter returns to the base with one of the sickest aliens,
to find a cure for what ails them.
O'Neill and Daniel get sick too on the planet, but seem fine as they return
to SGC.
It is obvious that the SG1 team have caused this illness and it now
threatens this entire civilization.
