with seven days to bust whistler out of prison, michael tried to take matters into his own hands and uses it to contact sara and receive a coded message about her location. he relays this information to linc, who unsuccessfully attempts to rescue sara and lj; sara is apparently killed as a result. michael then purposely shorts out the power, causing lechero to call on michael to fix it. michael restores power to the prison and also manages to restore power to a previously broken electric fence. it is revealed that michael fixed the fence so that the electricity will superheat a chemical that sucre (who was hired as the new grave digger) sprays on it, as the heated chemical is able to melt steel.