| Season Episode: 4x01 |
| Episode: 44 |
| Production Number: |
| Original Air Date: 2010-07-09 |
| Title: Founder's Day |
| |
| Season Episode: 4x02 |
| Episode: 45 |
| Production Number: |
| Original Air Date: 2010-07-16 |
| Title: A New World |
| |
| Season Episode: 4x03 |
| Episode: 46 |
| Production Number: |
| Original Air Date: 2010-07-23 |
| Title: All the Rage |
| |
| Season Episode: 4x04 |
| Episode: 47 |
| Production Number: |
| Original Air Date: 2010-07-30 |
| Title: The Story of O2 |
| |
| Season Episode: 4x05 |
| Episode: 48 |
| Production Number: |
| Original Air Date: 2010-08-06 |
| Title: Crossing Over |
| |
| Season Episode: 4x06 |
| Episode: 49 |
| Production Number: |
| Original Air Date: 2010-08-13 |
| Title: Momstrosity |
| |
| Season Episode: 4x07 |
| Episode: 50 |
| Production Number: |
| Original Air Date: 2010-08-20 |
| Title: Stoned |
| |
| Season Episode: 4x08 |
| Episode: 51 |
| Production Number: |
| Original Air Date: 2010-08-27 |
| Title: The Ex-files |
| |
| Season Episode: 4x09 |
| Episode: 52 |
| Production Number: |
| Original Air Date: 2010-09-10 |
| Title: I'll Be Seeing You |
| |
| Season Episode: 4x10 |
| Episode: 53 |
| Production Number: |
| Original Air Date: 2010-12-07 |
| Title: O' Little Town... |
| |
| Season Episode: 4x11 |
| Episode: 54 |
| Production Number: |
| Original Air Date: 2011-07-11 |
| Title: Liftoff |
| |
| Season Episode: 4x12 |
| Episode: 55 |
| Production Number: |
| Original Air Date: 2011-07-18 |
| Title: Reprise |
| |
| Season Episode: 4x13 |
| Episode: 56 |
| Production Number: |
| Original Air Date: 2011-07-25 |
| Title: Glimpse |
| |
| Season Episode: 4x14 |
| Episode: 57 |
| Production Number: |
| Original Air Date: 2011-08-01 |
| Title: Up In The Air |
| |
| Season Episode: 4x15 |
| Episode: 58 |
| Production Number: |
| Original Air Date: 2011-08-08 |
| Title: Omega Girls |
| |
| Season Episode: 4x16 |
| Episode: 59 |
| Production Number: |
| Original Air Date: 2011-08-15 |
| Title: Of Mites And Men |
| |
| Season Episode: 4x17 |
| Episode: 60 |
| Production Number: |
| Original Air Date: 2011-08-22 |
| Title: Clash Of The Titans |
| |
| |
| Season Episode: 4x19 |
| Episode: 62 |
| Production Number: |
| Original Air Date: 2011-09-12 |
| Title: One Small Step |
| |
| Season Episode: 4x20 |
| Episode: 63 |
| Production Number: |
| Original Air Date: 2011-09-19 |
| Title: One Giant Leap |
| |
| Season Episode: 4x21 |
| Episode: 64 |
| Production Number: 64 |
| Original Air Date: 2011-12-06 |
| Title: Do You See What I See? |
| |
