See You Next Apocalypse - S2-E3
Visible crew/equipment: When Engine 1591 encounters resistance at their evac location, Jake tells Gabriela to treat Zachary. In the following wide shots facing Laura, Alice, and Zachary, there are two T-marks, a red and a blue, visible on the ground near Zachary (there's also a small bright green mark on the ground behind Alice). (00:15:05)