01 — How to Start a Dragon Academy

02 — Viking for Hire

03 — Animal House

04 — The Terrible Twos

05 — In Dragons We Trust

06 — Alvin and the Outcasts

07 — How to Pick Your Dragon

08 — Portrait of Hiccup as a Buff Man

09 — Dragon Flower

10 — Heather Report (1)

11 — Heather Report (2)

12 — Thawfest

13 — When Lightning Strikes

14 — What Flies Beneath

15 — Twinsanity

16 — Defiant One

17 — Breakneck Bog

18 — Gem of a Different Color

19 — We Are Family (1)

20 — We Are Family (2)