The Night of the Bleak Island (S04E21)

S04E01 The Night of the Big Blackmail S04E02 The Night of the Doomsday Formula S04E03 The Night of the Juggernaut S04E04 The Night of the Sedgewick Curse S04E05 The Night of the Gruesome Games S04E06 The Night of the Kraken S04E07 The Night of the Fugitives S04E08 The Night of the Egyptian Queen S04E09 The Night of Fire and Brimstone S04E10 The Night of the Camera S04E11 The Night of the Avaricious Actuary S04E12 The Night of Miguelito's Revenge S04E13 The Night of the Pelican S04E14 The Night of the Spanish Curse S04E15 The Night of the Winged Terror (1) S04E16 The Night of the Winged Terror (2) S04E17 The Night of the Sabatini Death S04E18 The Night of the Janus S04E19 The Night of the Pistoleros S04E20 The Night of the Diva S04E21 The Night of the Bleak Island S04E22 The Night of the Cossacks S04E23 The Night of the Plague S04E24 The Night of the Tycoons