Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), David Faustino (Dagur), Nolan North (Commander)
Written By: Art Brown & Douglas Sloan
Directed By: David M.V. Jones & Jae Hong Kim
Ep: 68
Crash Course
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut)
Written By: Art Brown & Douglas Sloan
Directed By: Simon Otto
Ep: 69
Follow the Leader
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), Angela Bartys (Gothi), Nolan North (Stoick), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut)
Written By: Art Brown & Douglas Sloan
Directed By: T.J. Sullivan
Ep: 70
Turn and Burn
Cast: Jay Baruchel (Hiccup), Nolan North (Stoick), Zack Pearlman (Snotlout), David Tennant (Spitelout)
Written By: Art Brown & Douglas Sloan
Directed By: David M.V. Jones & Jae Hong Kim
Ep: 71
Buffalord Soldier
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), JB Blanc (Ryker), Alfred Molina (Viggo), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut)
Written By: FM De Marco
Directed By: Robert Briggs & Jae Hong Kim
Ep: 72
A Grim Retreat
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), Chris Edgerly (Gobber), Nolan North (Stoick), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut)
Written By: Art Brown & Douglas Sloan
Directed By: Simon Otto
Ep: 73
To Heather or Not to Heather
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut), Mae Whitman (Heather)
Written By: Art Brown & Douglas Sloan
Directed By: T.J. Sullivan
Ep: 74
Stryke Out
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), JB Blanc (Ryker), Zack Pearlman (Snotlout), James Arnold Taylor (Fight Master), Andree Vermeulen (Ruffnut), Mae Whitman (Heather)
Written By: Will Morey
Directed By: Greg Rankin
Ep: 75
Tone Death
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut), Mae Whitman (Heather)
Written By: Art Brown & Douglas Sloan
Directed By: Robert Briggs
Ep: 76
Between a Rock and a Hard Place
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), JB Blanc (Ryker), Alfred Molina (Viggo), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut), Mae Whitman (Heather)
Written By: FM De Marco
Directed By: T.J. Sullivan
Ep: 77
Family on the Edge
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), David Faustino (Dagur), Zack Pearlman (Snotlout), Andree Vermeulen (Ruffnut), Mae Whitman (Heather)
Written By: Jack Thomas
Directed By: David M.V. Jones
Ep: 78
Last Auction Heroes
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), JB Blanc (Ryker), Brook Chalmers (Viking 2), Chris Edgerly (Gobber), Michael Goldstrom (Trader Johann), Alfred Molina (Viggo), Nolan North (Stoick), Zack Pearlman (Snotlout), James Arnold Taylor (Viking 1 / Guard), Andree Vermeulen (Ruffnut), Mae Whitman (Heather)
Written By: uncredited
Directed By: David M.V. Jones
Ep: 79
Defenders of the Wing, Part 1
Cast: Jay Baruchel (Hiccup), America Ferrera (Astrid), Christopher Mintz-Plasse (Fishlegs), T.J. Miller (Tuffnut), JB Blanc (Ryker), Adelaide Kane (Mala), Alfred Molina (Viggo), Zack Pearlman (Snotlout), James Arnold Taylor (Throk), Andree Vermeulen (Ruffnut), Mae Whitman (Heather)