juanita and her henchman learn of the quadruple wedding ceremony centered on the lopez-fitzgerald family, as well as pilar's plan to flee harmony immediately thereafter. they plant a powerful bomb in the basement of the church and plan to set it off during the wedding. on monday, august 4, 2008, during the final week of the series' run, theresa discovered the bomb and was confronted by juanita. juanita attempted to shoot theresa, but the gun exploded in her hand. the wedding attendees soon arrived in the basement; luis and sam apprehended juanita while ethan defused the bomb.