Extraterrestrial interloper Harry Vanderspeigle and General McCallister put aside their differences and work together in the face of a much greater existential threat - the impending invasion of the Greys.

In season two, Harry is once again stranded on Earth where he must confront the consequences of having failed his people's mission to destroy the human race. On his new quest to protect the people of Earth, Harry struggles to hold on to his alien identity as his human emotions grow stronger by the day. In an adventure that takes Harry and Asta all the way to New York City, Asta brings Harry into the arms of someone he can call family. While back in Patience, Sheriff Mike and Deputy Liv find themselves closer to unraveling the mystery of Sam Hodges's murder.

A crash-landed alien takes on the identity of a small-town Colorado doctor and slowly begins to wrestle with the moral dilemma of his secret mission on Earth.