Written by Gennifer Hutchison and directed by series co-creator Peter Gould, "Lantern" aired on AMC in the United States on June 19, 2017.
In the episode, Jimmy plans to help Irene recover the trust of her friends at Sandpiper Crossing at the cost of his reputation, while Chuck is forced by Howard to resign from HHM, eventually causing a relapse of his condition.
He stages an argument with Erin Brill and "accidentally" admits to tricking Irene, vindicating her to her friends and causing her to withdraw her acceptance.
After Jimmy leaves, Chuck's EHS symptoms return and he destroys the walls of his house while trying to find the device that is making his electricity meter run.
Five days later,[b] Chuck sits back in a chair and kicks his desk several times, deliberately knocking over a gas lantern and starting a fire.
Speculation arose over whether or not the act was actually fatal; the National Suicide Prevention Lifeline's toll-free number also appears onscreen.
[4] Terri Schwartz of IGN rated the episode 9.5/10 stars, saying "Better Call Saul pulled off a fantastic Season 3 finale that perfectly balanced its storylines and brought a big lesson to Jimmy's doorstep.
With some hugely impactful moments that were both incredibly emotional and long-awaited by fans, "Lantern" proves that Better Call Saul is better than it's ever been with Season 3.