Season 1
Season 2
Season 3
Season 4
Season 5
Ep 1 · Heartthrob Hamster
Ep 2 · Astronuts
Ep 3 · Muck Amok
Ep 4 · Follow Those Footprints
Ep 5 · Breezy Rider
Ep 6 · Swamp Thing
Ep 7 · The Treasure of Bad Dog Bart
Ep 8 · Pet Sounds
Ep 9 · Cave Conundrum
Ep 10 · Daisy's Colossal Fossil
Ep 11 · There's Gold in Them Thar Hill
Ep 12 · Nature Cat and Mr. Hide
Ep 13 · Where Have All the Butterflies
Ep 14 · For the Birdies!
Ep 15 · Stream and Shout
Ep 16 · Hal's Day Off
Ep 17 · Tally Ho! A Rainbow
Ep 18 · Travelin' Seeds
Ep 19 · Ants Revolution
Ep 20 · Tide Pool Tough
Ep 21 · Hooray, It's Arbor Day
Ep 22 · Goodnight Gracie
Ep 23 · Love You, Michael Bluejáy
Ep 24 · Ze Worm Whisperer
Ep 25 · Happy Halentine's Day!
Ep 26 · The Groundhog Way
Ep 27 · Star Gazers
Ep 28 · A Jump to Remember
Ep 29 · Earth Day Today
Ep 30 · Earth Day Every Day
Ep 31 · Kingdom of Rotting Log
Ep 32 · Can You Dig It?
Ep 33 · Mud Love
Ep 34 · Call It a Night
Ep 35 · Woodpecker Picks a Place
Ep 36 · Here Comes the Sun
Ep 37 · The Great Grasshopper Race
Ep 38 · Fall for Hal
Ep 39 · Playground-Palooza
Ep 40 · Small But Big
Ep 41 · Slime Time
Ep 42 · Rock Stars
Ep 43 · Gimme Shelter
Ep 44 · Goin' Batty
Ep 45 · The Legend of Gold Gardens
Ep 46 · Winter Dance Party
Ep 47 · Ice Is Nice
Ep 48 · Bird's Eye View
Ep 49 · Runaway Pumpkin
Ep 50 · Lady Bug Tough
Ep 51 · Stop That Squirrel
Ep 52 · Onward and Pondward
Ep 53 · Appily Ever After
Ep 54 · Sound Off
Ep 55 · The Shell Game
Ep 56 · Heron Food Blues
Ep 57 · Spring Hunter 3000
Ep 58 · The Case of the Missing Moon
Ep 59 · Mighty Mountain Climbers
Ep 60 · Bug Eating Plants!
Ep 61 · The Flight of the Firefly
Ep 62 · Thunderstruck
Ep 63 · Plants Got the Moves
Ep 64 · Magnet Mania
Ep 65 · Return to Mighty Mountain
Ep 66 · Welcome to the Vernal Pond
Ep 67 · Ocean Commotion
Ep 68 · The Queen of the Night
Ep 69 · Space Rocks
Ep 70 · Croak and Swagger
Ep 71 · Puddle Pool Party
Ep 72 · The Glow Games
Ep 73 · Have a Grape Day
Ep 74 · Flamingo-A-Go-Go
Ep 75 · What a Tangled Web
Ep 76 · The Shellersons
Ep 77 · Only the Shadow Knows