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- Writers: Kenneth Johnson, Scott Peters
- Stars: Elizabeth Mitchell, Morris Chestnut, Joel Gretsch, Logan Huffman,
The Visitors continue to try and win favor with the population, this time by announcing that they will share their medical knowledge. Not only are they sharing advanced medical scanning techniques but they announce they will make available to all a new supercharged vitamin treatment. Erica, Jack and fifth columnist Ryan Nichols learn that they are in fact putting a drug in regular flu shots. Meanwhile, Anna agrees with Lisa that Erica's son Tyler is exactly the person they want for their future plans. Anna also learns that Dale, Erica's one-time FBI partner, was killed aboard the ship and takes steps to identify the fifth columnist who may be responsible. Ryan's wife Valerie has some important news for him.