The moment the spirited Maisie Brumble (Zaris-Angel Hator) leaps aboard Captain Jacob Holland’s (Karl Urban) ship, clinging to a rope with wide-eyed determination, “The Sea Beast” sets its course. Directed by Chris Williams (“Big Hero 6”), this Netflix animated adventure charts an unexpected journey into uncharted waters of family-friendly fantasy.

At its heart, “The Sea Beast” is a tale of redemption and companionship, wrapped in the trappings of a swashbuckling monster hunt. Jacob, a legendary sea beast hunter, reluctantly finds himself mentoring Maisie, a stowaway with a heart full of dreams and a head full of ideals. Their voyage aboard the “Inevitable” takes them into waters where terrifying beasts roam, but it’s the emotional currents that truly drive the narrative.

Where the film soars is in its visual craftsmanship. The animation is a feast for the eyes, with meticulously detailed sea creatures and sweeping ocean vistas that evoke a sense of wonder. The action sequences are thrillingly choreographed, particularly the scenes where Jacob and Maisie ride atop the back of Red Bluster, a gentle giant among monsters. Mark Mancina’s score elevates these moments, swelling with adventure and emotion.

The voice performances anchor the film in sincerity. Karl Urban brings a gruff charm to Jacob, his voice dripping with world-weariness that slowly melts away as he forms an unlikely bond with Maisie. Zaris-Angel Hator shines as Maisie, her youthful exuberance and moral clarity serving as the heart of the film. Jared Harris delivers a standout performance as Captain Crow, Jacob’s rival, injecting a delightful mix of menace and humor into his role.

However, the story itself is where “The Sea Beast” encounters some rough seas. The plot follows familiar beats of adventure tales, with predictable arcs of conflict and resolution. While the themes of empathy and challenging societal norms are commendable, they are explored in broad strokes rather than with nuanced depth. The film’s attempt to tackle complex ideas about monster hunters and their prey sometimes feels overshadowed by its more conventional narrative beats.

The pacing also stumbles occasionally, with some sequences feeling drawn out while others rush past without sufficient impact. The world-building, though visually impressive, lacks the richness that would make it feel truly immersive. The supporting characters, particularly the crew of the “Inevitable,” are underdeveloped, leaving their arcs feeling perfunctory.

Yet, despite these shortcomings, “The Sea Beast” manages to chart a course worth following. It’s a film that understands the power of its simple message: that monsters aren’t always what they seem, and heroism can be found in unexpected places. The chemistry between Jacob and Maisie is genuinely heartwarming, and their journey together is the film’s most compelling aspect.

In the end, “The Sea Beast” may not venture into entirely uncharted territory, but it offers a enjoyable voyage for viewers of all ages.