Epi 28 summary from official website:After being tricked by the Six Ancient Soldiers, King Zenoheld is more determined than ever to get his hands on the Bakugan possessing the Six Attribute Energies. At Mylene’s suggestion he dispatches Prince Hydron to Vestal to begin the retrieval. Meanwhile, Baron finds himself flirting with the idea of moving out, as his family home is getting more crowded by the day. While on a trip with his siblings to the park, he and Nemus are ambushed by Hydron and his Mechanical Bakugan, Dryad. A fierce battle ensues, but Nemus and Baron are no match for their Vexos opponents. Hydron walks away with Nemus’ Haos Energy as his trophy. Baron and Nemus decide that they must summon the others and band together in order to stop Zenoheld and his evil plan.Pic of Prince Hydron's mechanical Bakugan Dryad: