Hercules (1998)

S1E42 Hercules and the Son of Poseidon

Triton, Poseidon's son, comes to Prometheus Academy, and Hercules tries to assist him in adjusting to his new surroundings. However, when their efforts don’t pan out as intended, Hercules becomes frustrated and leaves Triton to fend for himself. In his desperation, Triton takes his father's enchanted triton, granting him a taste of power that he seeks to wield around the school.