Other mistake: If you look closely at the army of Rangers in the opening credits, you can see four versions of Tommy Oliver: Green Ranger, White Ranger, Zeo Ranger Red, Black Dino Ranger. Even though he had a single clone made, he can't be four variations at the same time.
Other mistake: James 'Big Jim' Rennie shoots at a picture of him and his son sitting on a table next to a yellow wall. After he shoots the picture he picks it up. When he does that there is no bullet hole in the wall behind the picture. (00:43:00)
Other mistake: The URL seen on Siobhan's laptop (https://internet-search.comm7986/index.html) is obviously a fake URL.
Other mistake: When Rebecca is telling Dorn about Etienne's death, she explains that his room was right above the garage and after the explosion she "tried to go in, but the room was gone." Yet at the end of the episode when Louis goes into Etienne's room, it is fully intact, including pictures taped to the wall.
Other mistake: Agents say they have seen seismic activity in South Dakota, but from earlier episodes, Daisy and Lincoln visit South Australia to find out Fire Guy.