Lifeline (S05E21)

S05E01 Dark So Early, Dark So Long S05E02 Cold Trail S05E03 A Step in Time S05E04 Wine From These Grapes S05E05 Woman in the Shadows S05E06 Days Beyond Recall S05E07 Run Till Dark S05E08 The Glass Trap S05E09 A Choice of Evils S05E10 A Button for General D S05E11 The Man Outside S05E12 Murder Times Three S05E13 Catspaw S05E14 To Save a Dead Man S05E15 Nightshade S05E16 Babe in the Woods S05E17 The Sound of Murder S05E18 Moving Target S05E19 Cry Pigeon S05E20 A Walk in the Shadows S05E21 Lifeline S05E22 To Draw the Lightning S05E23 Scapegoat S05E24 Death in the Fifth Gear