Unnatural Selection

This episode presents an interesting moral dilemma that has become a reoccurring theme for the show. The storyline was well developed and the acting decent.

The X-303 is located in an unknown part of the universe and Sam does not know how to route to return to Earth. Out of the blue, Thor appears at the bridge and tells that the Asgardian are monitoring Earth and it was possible to follow the X-303. He asks for help to O'Neill and the SG-1, since Asgard has been overrun by the Replicators. They used the android Reese to summon all the Replicators in the universe to trap them in a time dilatation device. However their plan failed and now they want to use the SG-1 and the X-303 to activate a time device to return to the original plan. O'Neill succeed to get authorization to proceed the mission and on the arrival, they learn that the Replicators have reverted the dilatation device and six of them have evolved to the human form. Now they want to explore the SG-1 minds to learn their knowledge and life experience. What will happen to the SG-1?

"Unnatural Selection" is so far the best episode of "Stargate SG-1" with a great story. The plot is highly attractive and O'Neill's unethical and Machiavellian decision in the end is logical despite the moral dilemma of Carter and the group. Fans will certainly be disappointed since Five's humanity could be a hope to save the universe from the Replicators. His surprise with Sam's attitude and this action may bring consequences to the SG-1 in the future episodes is the great question. My vote is ten.

Title (Brazil): "Unnatural Selection"

During the first part of the episode, we are treated to Jack, Jonas and Teal'c eating Ben and Jerry's. Through Jonas' exposition of why he finds the replicators 'fasinating' we see Jack trying to sample the pint that Teal'c had. The look of 'i will stab you with this spoon' Teal'c gives is hilarious and gives rise to a question of how many times has this happened to warrant that look.