The reference
Open supplied synopsis / parent-film description
Nibbler is selected for a one-way mission to observe a dying universe, forcing him and the crew to face a potentially permanent goodbye.
Workbook-derived reference; recent release states and missing final codes cross-checked. Not a primary-credit audit.
Catalog snapshot: September 13, 2026. This is not a claim that an editor wrote a full dossier on that date.
Source trail
Operator-supplied episode workbook Episodes!A178:L178