Presumed dead by many, Lalo Salamanca is alive and well after Gus' failed assassination attempt, and he continues to haunt Gus from afar.
Convinced that Lalo will soon strike back, Gus' paranoia shows no signs of slowing down, with Mike's men constantly surveilling Gus' house to no avail.
Viktor in the lab but the truth, and Lalo's body, would be right next to them the entire time, yet again proving that Walter White is more ignorant than he thinks.