1999/03: Earth X (1999) #000 s01 --- Prologue

1999/04: Earth X (1999) #001 s01 --- Chapter One

1999/05: Earth X (1999) #002 s01 --- Chapter Two

1999/06: Earth X (1999) #003 s01 --- Chapter Three

1999/07: Earth X (1999) #004 s01 --- Chapter Four

1999/08: Earth X (1999) #005 s01 --- Chapter Five