Minecraft Diaries episodes are broken into several story arcs. The following are the arc names, a description of the arc plot and the chapters and episodes they comprise.
Please note that these given names are not canon.
Season 1
Episode 1-4: New World Arc (New World - The Lord's Journal)
Episode 5-19: Bright Port Arc (The Dock & Dolphin - Lord of Bright Port)
Episode 20-23: Tranquility Arc (Return Home - The Shower)
Episode 24-37: Scaleswind Arc (Promises Made - Garroth's Face)
Episode 38-41: Access the Nether Arc (Laurance "The Hunk" - Memoirs of Sasha)
Episode 42-47: Nether Aftermath Arc (Levin Grows! - To Love or Leave?)
Episode 48-51: Wedding Arc (Transformation - Wedding on the Docks)
Episode 52-58: Baby Showers Arc (Sacrifice Made - Smile)
Episode 59-77: Tribe War Arc (Wolves Plight - Coming Home)
Episode 78-81: Phoenix Rising Arc (Coming Home! - Fallen Angel)
Episode 82-87: Shifting Tides Arc (A Boat On Water - The Smile of Alexis)
Episode 88-100: Phoenix War Arc (The Tossed Cats - The Amulet's Secret)
Season 2
Episode 1-5: Welcome to Phoenix Drop Arc (Welcome to Phoenix Drop - The Relic)
Episode 6-15: Enter New Meteli Arc (The Girl from Another Village - Sasha's Rage)
Episode 16-25: Journey to Scaleswind Arc (Travel Begins - A Lady's Best Friend)
Episode 26-28: Family Affair Arc (Katelyn's Angst - Our Past Love)
Episode 29-34: The Gal'ruk Region Arc (The Wind at Sea - My Golden Friend)
Episode 35-48: Missing Sons Arc (Dmitri's Father - Sons of Phoenix Drop)
Episode 49-51: Scholar Wedding Arc (An Honorable Request - A Phoenix Drop Wedding)
Episode 52-58: Sights of Pikoro Arc (Journey Witch Way - Goodbye Pikoro)
Episode 59-64: Voyage to the Island Arc (Mother and Daughter - Her Name)
Episode 65-80: Discovery of the Island Arc (The Island Shores - The Refugee's Plight)
Episode 81-85: Pyrrhic Victory Arc (His Choice - The Next Step)
Episode 86-92: Infiltrate O'Khasis Arc (Reunion With A Thief - A Lord and Her Guards)
Episode 93-96: Time of Peace Arc (Hello Hyria - The Protecter's Shrine)
Episode 97-100: Divine History Arc (She's Pregnant!? - The Angel Irene)