Complex sentence: He was also involved in a mission with his former Padawan Nahdar Vebb to capture the escaped prisoner, Nute Gunray--however, the two ended up facing the notorious Jedi hunter General Grievous inside his lair.
Split into simpler sentences: He was also involved in a mission with his former Padawan Nahdar Vebb to capture the escaped prisoner, Nute Gunray. However, the two ended up facing the notorious Jedi hunter General Grievous inside his lair.