Complex sentence: Scorpion appears in the animated series' in the episode "Sting of the Scorpion", in which he sends an undead army against the Earthrealm defenders and overwhelms Sub-Zero, but is finally defeated by Liu Kang.
Split into simpler sentences: Scorpion appears in the animated series' in the episode "Sting of the Scorpion". He sends an undead army against the Earthrealm defenders and overwhelms Sub-Zero, before being defeated by Liu Kang.