S4.E1 ∙ The ABC Murders Sat, Jan 04, 1992 Poirot receives taunting letters from a serial killer who appears to choose his victims and crime scenes alphabetically. 8.5 /10
S4.E2 ∙ Death in the Clouds Sat, Jan 11, 1992 While Poirot sleeps on an airplane flight from Paris to London, a notorious French moneylender is murdered with a poisoned dart. 7.8 /10
S4.E3 ∙ One, Two, Buckle My Shoe Sat, Jan 18, 1992 After Poirot pays a routine visit to his dentist, the doctor apparently shoots himself to death a short time later. Chief Inspector Japp appropriately recruits the detective as both witness and consultant. 7.7 /10
