Dr. STONE: STONE WARS Episode 3: Call from the Dead

Senku and Ryusui orchestrate a precise explosion to clear the Suez Canal. A miniature rocket, modified from Xeno's designs, becomes the instrument of their will. It streaks towards the blockage, demonstrating scientific power over brute force. The canal is cleared, a vital artery for their ambitious journey now open.

Aboard the Perseus, Ryusui grandly declares their destination: India, a land renowned for mathematics. He explains the terrifying precision needed for a moon mission, where a single decimal error means disaster. Gen looks overwhelmed, realizing the impossible scale of the task. They need not just a genius, but a legion of mathematical minds, capable of calculations beyond typical human limits.

The team arrives on India's lush coast, transforming their journey into a spice-gathering expedition. Francois meticulously prepares a vibrant curry, turning simple ingredients into a feast for the travel-weary crew. Around a campfire, Chrome humorously struggles with the spice, fostering a moment of communal laughter and simple joy. This interlude reminds us of the small comforts cherished amidst their grand quest.

By the flickering campfire, Kohaku expresses a quiet fear for Ruri and the other petrified villagers back home. She worries about their safety, wondering if they might have crumbled or eroded over the millennia. Kaseki and Suika listen, their faces reflecting the profound uncertainty of their long separation from loved ones. This small, melancholic beat reminds us of the personal stakes behind the scientific ambition.

Ryusui, drawing on family history and his brother's habits, deduces that Nanami Sai, their target mathematician, would have been on the university rooftop at the moment of petrification. Senku and Chelsea work in tandem, their brilliant minds mapping millennia of geological shifts. With synchronized precision, they pinpoint Sai's exact, overgrown location. The intellectual synergy on display is remarkable, almost a dance of logic.

The team begins the arduous task of uncovering the site, with Kohaku and Chrome providing the physical strength. Ryusui employs a high-pressure water system from the Perseus to reveal the petrified forms hidden beneath the earth. A mass of stone figures emerges, preserved for eons. Among them, Ryusui identifies his brother, Nanami Sai, his unique features now visible in the cold stone.

Upon revival, Sai immediately screams and tries to flee into the jungle, clearly terrified. Kohaku swiftly captures him with a practiced maneuver, pinning him before he can escape. Sai cries out, proclaiming he will not return to the Nanami family business. Ryusui stands over his brother, a mixture of triumph and arrogance on his face, attempting to explain Sai's genius to the confused crew.

Ryusui confronts Sai, shedding his arrogance for a moment of intense sincerity, pleading for his brother's help to reach the moon. Sai resists vehemently, accusing Ryusui and their father of seeing him only as a tool. The raw emotional exchange exposes the deep resentment Sai carries, revealing a familial wound that time has not healed. This is more than a simple disagreement; it is a battle over identity and purpose.

A flashback reveals a young Sai forced into endless mental math by his stern father, his childhood stolen by corporate ambition. While other children play, he is a captive to calculations, hollow-eyed and exhausted. His father views him as an asset, reducing his son to a profit-generating machine. This relentless training shapes Sai into a calculating prodigy, but at a devastating personal cost.

The flashback continues, showing a young Ryusui visiting a despondent Sai in a rain-soaked gazebo. Ryusui, with his signature blend of ambition and self-interest, urges Sai to use his genius to pursue everything he desires. He suggests Sai leave for India to become a programmer, promising a future reunion where they would achieve great things together. This unexpected support from Ryusui provides a twisted form of hope.

Back in the present, Sai breaks down completely, overwhelmed by the realization that his beloved computers and programming are gone. He isolates himself on the Perseus, refusing to eat or speak, lost in a profound grief for his vanished world. Gen attempts to console him, recognizing a psychological barrier born from loss. Sai's silent despair hangs heavy in the air.

Gen discovers Sai's small room covered entirely in meticulously written hexadecimal code, thousands of lines composed from memory. Senku and Ryusui enter, equally astonished by the sheer volume of programming. Senku realizes Sai has been 'programming' by hand, maintaining his sanity through the only method available. This revelation shifts their perception of Sai from a mere calculator to a 'Singularity' of creative thought.

Ryusui confronts his brother Sai again, but this time his words are different; he speaks to him as a fellow creator. He explains they don't want a calculator, but a partner to build the Stone World's first computer. Sai's despair slowly gives way to a glimmer of hope as he listens, realizing the true ambition of their proposal. This moment marks his internal decision, a powerful turning point where his trauma begins to heal through a shared purpose.

Senku declares to the entire crew that they will build the first computer in the Stone World, acknowledging the immense challenge but stating it is 'ten billion percent' possible. The crew, invigorated by this audacious goal, cheers with renewed purpose. Sai stands with Senku and Ryusui, no longer an unwilling captive, but a crucial, integrated member of the team. The Perseus sails on, carrying the hopes for a new digital age.