Episode 1
Zig, a hyena living on an island, decides to eat the lovely mermaid, Marina, but Sharko, a strong shark, keeps blocking Zig's path.
Episode 2
King Neptune tries to woo Marina, so Zig and Sharko must work together to bring her back.
Episode 3
An oil spill makes the ocean slick and slimy, so Bernie finds a way to get rid of all the oil in the water.
Episode 4
Episode 5
Sharko discovers a buried treasure and builds a luxury mansion, then must deal with the treasure's angry pirate owner.
Episode 6
Zig battles a polar bear after the water freezes.
Episode 7
Marina wants a pet, so she adopts Bernie and treats him like a pet.
Episode 8
Zig helps Sharko rebuild Marina's house after it is destroyed.
Episode 9
Zig builds some ships in order to eat Marina.
Episode 10
Marina dreams of being a flight attendant.
Episode 11
Zig and Sharko join forces against a human castaway competing for Marina's affections.
Episode 12
Zig finds interesting objects while digging a tunnel in his latest scheme to catch Marina.
Episode 13
Marina takes up water skiing using Sharko as her "boat"; Zig enlists a crazy dolphin's help to catch her.
Episode 14
Marina nurses Zig back to health after one of Sharko's beatings.
Episode 15
Bernie becomes a surrogate father to a lost herd of baby crabs.
Episode 16
Zig and Bernie disguise an old submarine as a female shark to lure Sharko away from Marina.
Episode 17
Zig and Bernie discover a mannequin on the island, while Marina discovers something much more profound.
Episode 18
A shrimp competes with Bernie as Zig's assistant.
Episode 19
Zig tries to sabotage Sharko and Marina's dinner date.
Episode 20
Zig tries using the active volcano against Marina.
Episode 21
A lighthouse is put up near the island after a fog roll in.
Episode 22
Zig finds a wrecked boat on the shore and uses its cargo of bamboo in his latest scheme.
Episode 23
Zig uses inflatable balloons to get to Marina.
Episode 24
Zig builds a boat out of LEGO-like building blocks to catch Marina.
Episode 25
Marina has to compete with another mermaid for Sharko's affections.
Episode 26
Zig attempts to catch Marina while she plays golf with Sharko.
Episode 27
Zig holds a go-cart race to catch Marina.
Episode 28
Zig enlists several whales in his schemes.
Episode 29
Zig dresses up as Santa Claus to catch Marina.
Episode 30
After Sharko rescues Marina trapped in Zig's swimming pool, they find his lair.
Episode 31
Zig and Bernie find a magician's powerful hat and cane.
Episode 32
Sharko leaves temporally with a hammerhead shark.
Episode 33
A Japanese whaling ship tries to capture Sharko.
Episode 34
A manta ray competes for Marina's affections.
Episode 35
Zig throws Marina a birthday party to trap her; she is angry at Sharko for forgetting her birthday.
Episode 36
A jaguar shows up on the island and tries to coach Zig into becoming buff.
Episode 37
Sharko turns the volcano into a ski resort so that Marina can try out some winter sports.
Episode 38
Zig becomes Marina's butler in an attempt to catch her.
Episode 39
Zig and Sharko must join forces to rescue Marina, who is being taken to an aquarium.
Episode 40
Sharko dresses Zig as a mermaid and forces him to become Marina's companion.
Episode 41
A piranha befriends Sharko and Marina but actually intends to eat her.
Episode 42
Marina becomes friends with a ghost who shows up at her house, to Sharko's dismay.
Episode 43
A tsunami floods the island, and Marina temporarily loses Sharko.
Episode 44
Zig and Bernie build an amusement park to trap Marina.
Episode 45
Zig finds an elephant in a crate washed up on shore and tries to use it in his schemes.
Episode 46
Zig and Sharko find a strange and mysterious place at the bottom of the sea.
Episode 47
Marina babysits a baby octopus.
Episode 48
Zig finds a book of Da Vinci's inventions and tries to use them in his schemes.
Episode 49
Zig returns to Africa to live among his fellow hyenas but finds he doesn't fit in.
Episode 50
Sharko's parents visit; they disapprove of his relationship with a mermaid.
Episode 51
Marina and Sharko go camping, but Zig and Bernie aren't far behind.
Episode 52
Zig uses a shapeshifting jellyfish that washes up on shore in his latest scheme.
Episode 53
Zig volunteers to help rid Sharko's hiccups, as another scheme to get Marina.
Episode 54
Inspired by a TV show, Zig emulates a superhero to trap Marina.
Episode 55
Bernie makes a strength potion to take over King Neptune's castle.
Episode 56
Zig gets knocked unconscious, and dreams he is in a Western.
Episode 57
Neptune wants to build a road to his tennis court, through Marina and Sharko's house.
Episode 58
A "fishy godmother" grants Marina's wish for legs, but it causes more problems than it solves.
Episode 59
Zig and Bernie find a variety of origami creations from a wrecked cargo ship and use them in their schemes.
Episode 60
The shock of an electric eel causes Zig and Sharko to switch bodies.
Episode 61
Bernie makes robot clones of Zig to get Marina, but they can't be controlled.
Episode 62
When Marina becomes a lifeguard, Zig pretends to drown to trap her.
Episode 63
A band of pirates tries to capture Marina.
Episode 64
Zig challenges Sharko to a jousting duel.
Episode 65
Troublemakers
Episode 66
King Neptune makes Marina a singing star; Sharko must team up with Zig to get her back.
Episode 67
Eating bananas causes Zig to transform into a Jekyll and Hyde monster.
Episode 68
When a cruise ship visits the island, Marina and Sharko pose as passengers, pursued by Zig.
Episode 69
Zig gets amnesia and reverts to a baby after getting struck by lightning.
Episode 70
Bernie moves away from the island after a bitter argument with Zig and invites Sharko and Marina to a house party.
Episode 71
Sharko tries to fix Marina's bad haircut before taking her to the opera.
Episode 72
Extraterrestrial fruit juices give Zig and Sharko strange powers.
Episode 73
Zig takes advantage of Marina's shopping addiction by posing as a cab driver.
Episode 74
Marina convinces Sharko to join the police force.
Episode 75
Marina, Sharko, Zig, and Bernie find a rocket and are accidentally shot into orbit, where they meet a deranged astronaut on a space station.
Episode 76
A fisherman arrives at the island and starts kidnapping undersea life to catch scallops.
Episode 77
When Zig gives up trying to catch Marina, Bernie gets the crazy dolphin to lure her to the island.
Episode 78
A shipwrecked boat carries toys, which Zig employs in his schemes. The last episode of season 1 with the old designs.
