S1Truce Sat, Apr 28, 2018 Ink and error see their differences and make a truce where if one of them destroys or creates something, the deal is off 8.8 /10
S1.E1 ∙ Underverse 0.0 Mon, Jul 04, 2016 XTale!Chara steals half of Sans' soul, but Ink comes in and tries to stop him. 8.8 /10
S1.E2 ∙ Underverse 0.1 Mon, Jul 04, 2016 Filled with negativity after absorbing the half soul, Cross is tasked with a mission by a darker version of Sans. Ink and Classic Sans discuss what to do next. 8.8 /10
S1.E3 ∙ Underverse 0.2 Sun, Aug 21, 2016 Classic!Sans and Ink!Sans visit the Underfell AU, so they can track down Cross!Sans and to stop him from collecting the data from the Underfell AU. 9.2 /10
S1.E4 ∙ Xtra Scene 1 Wed, Nov 23, 2016 After Ink is taken by Error, Underfell Sans follows Classic Sans to a field of echo flowers. Ink and Error discuss their truce. 9 /10
S1.E5 ∙ Underverse 0.3 Part 1 Sat, Mar 25, 2017 Classic Sans, Fell, and Ink track Cross into the Underswap universe. 9.5 /10
S1.E6 ∙ Underverse 0.3 Part 2 Sat, Aug 05, 2017 After being freed from Cross, XChara tests Underswap Chara's determination. 9.6 /10
S1.E8 ∙ Underverse 0.4 Sat, Jul 28, 2018 The truce is broken. XGaster puts the timelines effected by the X-Event under quarantine. 9.4 /10
S1.E9 ∙ Epilogue Wed, Aug 08, 2018 Welcome to our future new home, my children. The main universe. 8.6 /10
