| Season Episode: 4x01 |
| Episode: 44 |
| Production Number: |
| Original Air Date: 2011-10-24 |
| Title: Missing Valentine |
|  |
| Season Episode: 4x02 |
| Episode: 45 |
| Production Number: |
| Original Air Date: 2011-10-31 |
| Title: The Dark Ravine |
| |
| Season Episode: 4x03 |
| Episode: 46 |
| Production Number: |
| Original Air Date: 2011-11-07 |
| Title: A Father's Quest |
| |
| Season Episode: 4x04 |
| Episode: 47 |
| Production Number: |
| Original Air Date: 2011-11-14 |
| Title: Memory Lane |
| |
| Season Episode: 4x05 |
| Episode: 48 |
| Production Number: |
| Original Air Date: 2011-11-21 |
| Title: Spring Break Nightmare |
| |
| |
| Season Episode: 4x07 |
| Episode: 50 |
| Production Number: |
| Original Air Date: 2011-12-05 |
| Title: Vanished in Vermont |
| |
| Season Episode: 4x08 |
| Episode: 51 |
| Production Number: |
| Original Air Date: 2011-12-12 |
| Title: Midnight Walk |
| |
| Season Episode: 4x09 |
| Episode: 52 |
| Production Number: |
| Original Air Date: 2011-12-19 |
| Title: The Wedding Ring |
| |
| Season Episode: 4x10 |
| Episode: 53 |
| Production Number: |
| Original Air Date: 2012-01-02 |
| Title: Innocence Lost |
| |
| Season Episode: 4x11 |
| Episode: 54 |
| Production Number: |
| Original Air Date: 2012-01-09 |
| Title: The Road Not Taken |
| |
| Season Episode: 4x12 |
| Episode: 55 |
| Production Number: |
| Original Air Date: 2012-01-16 |
| Title: Dancing into Darkness |
| |
| Season Episode: 4x13 |
| Episode: 56 |
| Production Number: |
| Original Air Date: 2012-01-23 |
| Title: Crime & Punishment |
| |
| |
| Season Episode: 4x15 |
| Episode: 58 |
| Production Number: |
| Original Air Date: 2012-02-06 |
| Title: Daddy's Girl |
| |
| Season Episode: 4x16 |
| Episode: 59 |
| Production Number: |
| Original Air Date: 2012-02-13 |
| Title: Last Call |
| |
| Season Episode: 4x17 |
| Episode: 60 |
| Production Number: |
| Original Air Date: 2012-02-20 |
| Title: Hometown Hero |
| |
| Season Episode: 4x18 |
| Episode: 61 |
| Production Number: |
| Original Air Date: 2012-02-27 |
| Title: A Soldier's Story |
| |
| Season Episode: 4x19 |
| Episode: 62 |
| Production Number: |
| Original Air Date: 2012-03-05 |
| Title: Into the Bayou |
| |
| Season Episode: 4x20 |
| Episode: 63 |
| Production Number: |
| Original Air Date: 2012-03-12 |
| Title: Little Girl Lost |
| |
| Season Episode: 4x21 |
| Episode: 64 |
| Production Number: |
| Original Air Date: 2012-03-19 |
| Title: The Vortex |
| |
| Season Episode: 4x22 |
| Episode: 65 |
| Production Number: |
| Original Air Date: 2012-03-26 |
| Title: Final Exam |
| |
| Season Episode: 4x23 |
| Episode: 66 |
| Production Number: |
| Original Air Date: 2012-04-02 |
| Title: Too Young For Love |
| |
| Season Episode: 4x24 |
| Episode: 67 |
| Production Number: |
| Original Air Date: 2012-04-09 |
| Title: Footprints in the Sand |
| |
| Season Episode: 4x25 |
| Episode: 68 |
| Production Number: |
| Original Air Date: 2012-04-16 |
| Title: Just a Nice Guy |
| |
| |
| Season Episode: 4x27 |
| Episode: 70 |
| Production Number: |
| Original Air Date: 2012-04-30 |
| Title: Missing By Design |
| |
