ABC World News Tonight With David Muir

When Jason goes in search of his father, he washes up on the shores of a mysterious land. But it seems the newcomer has chosen the wrong time to arrive in the fabled realm of Atlantis, and Jason soon finds himself at the mercy of a deadly ritual.

When an old man needs help to find his missing daughter, it soon becomes clear that it will not be an easy task. But just when their perilous task seems at an end, Jason comes face-to-face with a stranger named Medusa.

After crossing a nobleman, Jason and his friends find themselves at the mercy of King Minos who declares Poseidon will decide their fate. With their lives on the line, it's up to Jason to pull his motley team together in this ultimate test of bravery.

While hunting in the mountains, the boys stumble across an abandoned baby. Jason refuses to leave the child to die and insists he return home with them to Atlantis.

When a secret messenger brings unexpected news from outside the city, Ariadne tries to search for the source without raising suspicion from the Queen.

Desperate to win over Medusa's heart, Hercules pays a visit to a powerful witch. But events take a malevolent turn when Hercules unleashes a toxic enchantment that threatens to turn his hope into unbearable grief. It is up to Jason to undo history.

When Jason learns of Ariadne's betrothal to Heptarian, he is heartbroken. With nothing to lose, he enters into a brutal fighting tournament. It's up to Jason's friends to guide him through the contest where there are more than just broken hearts at stake.

The boys gain an unexpected addition to their workforce with the arrival of Pythagoras's feisty younger brother, Arcas. Charged with escorting a valuable cargo across the desert, the gang's journey takes a spooky turn.

Medusa is kidnapped by a cruel moneylender, Kyros. In exchange for her life, Kyros demands that Hercules retrieves a precious and powerful artifact from the Underworld - a task which can only mean certain death.

After the tragic events surrounding Medusa's disappearance, the boys visit the inventor Daedalus with the hope of a cure. But an impatient Hercules acts on information from the unscrupulous Crios and sets off in search of his love.

Penniless and starving, Jason cannot believe his luck when he finds an abandoned feast. Temptation takes over and he helps himself to the bounty, but his gluttony comes at a price as he begins to behave strangely.

Jason is reminded of his promise to Circe and her grim warning should he fail to honor their pact. He has no choice but to act - he must kill the queen. Infiltrating the palace will not only be mortally dangerous but also impossible.

Minos' health continues to fade as Pasiphae's scheming reaches its zenith. She sentences Ariadne to a gruesome execution. Jason is her last hope and he'll need all the help he can get if he is to save her life.