Season 4 Episode
- Season 4 Two Kisses One Party
- Season 4 Open Mic Plight
- Season 4 Just Friends
- Season 4 March Break
- Season 4 6 1/2
- Season 4 Derek Denies Denial
- Season 4 Happy New Schoolyear
- Season 4 No Secrets
- Season 4 Take A Stepkid to Work Day
- Season 4 No More Games
- Season 4 How I Met Your Stepbro
- Season 4 Casey & Ralph?!
- Season 4 Tuesday Afternoon Fever
- Season 4 Teddy's Back
- Season 4 Rude Awakenings
- Season 4 Truman's Last Chance
- Season 4 Surprise!
- Season 4 Futuritis
Life with Derek - Season 4 Episode 12 Casey & Ralph?!
6.88 30 minutes While his parents are away for the weekend, Ralph stays at Derek's home where he begins to develop a crush on Casey.
