The first symbol of Episode 3 ("City on the Make") depicts an oyster and a lemon slice. In Chicago, Marty, Wendy, and Charlotte have a rather tense dinner with Javi. While discussing Charlotte's plans after high school, Javi makes a point to instruct her on how to eat an oyster, saying "You don't chew. You just sort of slurp it down." Javi seems happy at the dinner, but his joyful attitude is short lived once he realizes that someone has double-crossed him.
Hundreds of miles away, FBI Agent Maya Miller (Jessica Frances Dukes) leads a battalion of federal agents in a raid against one of Javi's weapon shipments. After forcing the driver to stop, the agents use a set of bolt cutters, as depicted in the second quadrant here, to open the trunk of the semi-trailer truck. While the first two symbols reference events in the closing moments of the episode, the last two symbols actually point to earlier scenes.
Before they depart for Chicago, the four members of the Byrde family share Chinese food for dinner. While Marty, Wendy, and Charlotte all appear adept at operating chopsticks, Jonah instead opts to employ the use a fork, further signifying Jonah's distance from the rest of the family.
The last symbol of this episode is easily the hardest of the four to place, but we think we figured it out. As Shaw considers the sample of opium provided by the cartel, she uses a number of chemistry tools to measure it. These items include a number of beakers, a graduated cylinder, a test tube, and a pipette.